1. Thing Explainer (Hardcover)
by Randall Munroe 
Price: USD 26.19
Dealer: Abebooks, Grand Eagle Retail
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Dey Street Books] Hardcover Hardcover. Have you ever tried to learn more about some incredible thing, only to be frustrated by incomprehensible jargon? Randall Munroe is here to help. In Thing Explainer, he uses line drawings and only the thousand (or, rather, "ten hundred") most common words to provide simple explanations for some of the most interesting stuff there is, including: food-heating radio boxes (microwaves)tall roads (bridges)computer buildings (datacenters)the shared space house (the International Space Station)the other worlds around the sun (the solar system)the big flat rocks we live on (tectonic plates)the pieces everything is made of (the periodic table)planes with turning wings (helicopters)boxes that make clothes smell better (washers and dryers)the bags of stuff inside you (cells) How do these things work? Where do they come from? What would life be like without them? And what would happen if we opened them up, heated them up, cooled them down, pointed them in a different direction, or pressed this button? In Thing Explainer, Munroe gives us the answers to these questions and so many more. Funny, interesting, and always understandable, this book is for anyone--age 5 to 105--who has ever wondered how things work, and why. From the creator of the webcomic xkcd and author of the #1 New York Times bestseller What If?, a series of brilliantly--and simply!--annotated blueprints that explain everything from nuclear bombs to ballpoint pens Shipping may be from multiple locations in the US or from the UK, depending on stock availability. [Wilmington, DE, U.S.A.] [Publication Year: 2015]  

2. Thing Explainer (Hardcover)
by Randall Munroe 
Price: USD 41.99
Dealer: AbebooksAU, AussieBookSeller
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Dey Street Books] Hardcover Hardcover. Have you ever tried to learn more about some incredible thing, only to be frustrated by incomprehensible jargon? Randall Munroe is here to help. In Thing Explainer, he uses line drawings and only the thousand (or, rather, "ten hundred") most common words to provide simple explanations for some of the most interesting stuff there is, including: food-heating radio boxes (microwaves)tall roads (bridges)computer buildings (datacenters)the shared space house (the International Space Station)the other worlds around the sun (the solar system)the big flat rocks we live on (tectonic plates)the pieces everything is made of (the periodic table)planes with turning wings (helicopters)boxes that make clothes smell better (washers and dryers)the bags of stuff inside you (cells) How do these things work? Where do they come from? What would life be like without them? And what would happen if we opened them up, heated them up, cooled them down, pointed them in a different direction, or pressed this button? In Thing Explainer, Munroe gives us the answers to these questions and so many more. Funny, interesting, and always understandable, this book is for anyone--age 5 to 105--who has ever wondered how things work, and why. From the creator of the webcomic xkcd and author of the #1 New York Times bestseller What If?, a series of brilliantly--and simply!--annotated blueprints that explain everything from nuclear bombs to ballpoint pens Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability. [Truganina, VIC, Australia] [Publication Year: 2015]  

3. Thing Explainer (Hardcover)
by Randall Munroe 
Price: USD 37.93
Dealer: AbebooksUK, CitiRetail
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Dey Street Books] Hardcover Hardcover. Have you ever tried to learn more about some incredible thing, only to be frustrated by incomprehensible jargon? Randall Munroe is here to help. In Thing Explainer, he uses line drawings and only the thousand (or, rather, "ten hundred") most common words to provide simple explanations for some of the most interesting stuff there is, including: food-heating radio boxes (microwaves)tall roads (bridges)computer buildings (datacenters)the shared space house (the International Space Station)the other worlds around the sun (the solar system)the big flat rocks we live on (tectonic plates)the pieces everything is made of (the periodic table)planes with turning wings (helicopters)boxes that make clothes smell better (washers and dryers)the bags of stuff inside you (cells) How do these things work? Where do they come from? What would life be like without them? And what would happen if we opened them up, heated them up, cooled them down, pointed them in a different direction, or pressed this button? In Thing Explainer, Munroe gives us the answers to these questions and so many more. Funny, interesting, and always understandable, this book is for anyone--age 5 to 105--who has ever wondered how things work, and why. From the creator of the webcomic xkcd and author of the #1 New York Times bestseller What If?, a series of brilliantly--and simply!--annotated blueprints that explain everything from nuclear bombs to ballpoint pens Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. [Stevenage, United Kingdom] [Publication Year: 2015]  

4. Thing Explainer : Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 9.16
Dealer: Biblio, Better World Books
Description: HarperCollins Publishers. Used - Good. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. HarperCollins Publishers ISBN 0544668251 9780544668256 [US] 

5. Thing Explainer : Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 9.16
Dealer: Biblio, Better World Books
Description: HarperCollins Publishers. Used - Good. Used book that is in clean, average condition without any missing pages. HarperCollins Publishers ISBN 0544668251 9780544668256 [US] 

6. Thing Explainer : Complicated Stuff in Simple Words
by Randall Munroe 
Price: USD 6.05
Dealer: Biblio, ThriftBooks
Description: Houghton Mifflin Harcourt Publishing Company, Date: 2015. Hardcover. Good. Disclaimer:Missing dust jacket; Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.Dust jacket quality is not guaranteed. 2015. Houghton Mifflin Harcourt Publishing Company ISBN 0544668251 9780544668256 [US] 

7. Thing Explainer : Complicated Stuff in Simple Words
by Randall Munroe 
Price: USD 6.07
Dealer: Biblio, ThriftBooks
Description: Houghton Mifflin Harcourt Publishing Company, Date: 2015. Hardcover. Acceptable. Disclaimer:A readable copy. All pages are intact, and the cover is intact. Pages can include considerable notes-in pen or highlighter-but the notes cannot obscure the text. At ThriftBooks, our motto is: Read More, Spend Less.Dust jacket quality is not guaranteed. 2015. Houghton Mifflin Harcourt Publishing Company ISBN 0544668251 9780544668256 [US] 

8. Thing Explainer : Complicated Stuff in Simple Words
by Randall Munroe 
Price: USD 6.10
Dealer: Biblio, ThriftBooks
Description: Houghton Mifflin Harcourt Publishing Company, Date: 2015. Hardcover. Good. Disclaimer:A copy that has been read, but remains in clean condition. All pages are intact, and the cover is intact. The spine may show signs of wear. Pages can include limited notes and highlighting, and the copy can include previous owner inscriptions. An ex-library book and may have standard library stamps and/or stickers. At ThriftBooks, our motto is: Read More, Spend Less.Dust jacket quality is not guaranteed. 2015. Houghton Mifflin Harcourt Publishing Company ISBN 0544668251 9780544668256 [US] 

9. Thing Explainer : Complicated Stuff in Simple Words
by Munroe, Randall 
Price: USD 7.95
Dealer: Abebooks, Better World Books: West
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: HarperCollins Publishers] Hardcover Used book that is in clean, average condition without any missing pages. [Reno, NV, U.S.A.] [Publication Year: 2015]  

10. Thing Explainer : Complicated Stuff in Simple Words
by Munroe, Randall 
Price: USD 7.95
Dealer: Abebooks, Better World Books
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: HarperCollins Publishers] Hardcover Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. [Mishawaka, IN, U.S.A.] [Publication Year: 2015]  

11. Thing Explainer : Complicated Stuff in Simple Words
by Munroe, Randall 
Price: USD 29.48
Dealer: AbebooksUK, GreatBookPricesUK
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Dey Street Books] Hardcover [Castle Donington, DERBY, United Kingdom] [Publication Year: 2015]  

12. Thing Explainer : Complicated Stuff in Simple Words
by Munroe, Randall 
Price: USD 7.65
Dealer: ZVAB, Better World Books
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: HarperCollins Publishers] Hardcover Former library book; may include library markings. Used book that is in clean, average condition without any missing pages. [Mishawaka, IN, U.S.A.] [Publication Year: 2015]  

13. Thing Explainer : Complicated Stuff in Simple Words
by Randall Munroe 
Price: USD 30.11
Dealer: AbebooksDE, AHA-BUCH GmbH
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Harper Collins Publ. USA Nov 2015] Hardcover Neuware - Have you ever tried to learn more about some incredible thing, only to be frustrated by incomprehensible jargon Randall Munroe is here to help. In Thing Explainer, he uses line drawings and only the thousand (or, rather, 'ten hundred') most common words to provide simple explanations for some of the most interesting stuff there is, including: [Einbeck, Germany] [Publication Year: 2015]  

14. Thing Explainer : Complicated Stuff in Simple Words
by Randall Munroe 
Price: USD 27.32
Dealer: ZVAB, AHA-BUCH GmbH
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Harper Collins Publ. USA Nov 2015] Hardcover Neuware - Have you ever tried to learn more about some incredible thing, only to be frustrated by incomprehensible jargon Randall Munroe is here to help. In Thing Explainer, he uses line drawings and only the thousand (or, rather, 'ten hundred') most common words to provide simple explanations for some of the most interesting stuff there is, including: [Einbeck, Germany] [Publication Year: 2015]  

15. Thing Explainer
by Munroe Randall 
Price: USD 12.50
Dealer: Biblio, Eureka Books
Description: Houghton Mifflin Harcourt, Date: 2015. Hardcover. A very good copy in a very good dust jacket. Some light red markings on the front of the jacket. Have you ever tried to learn more about some incredible thing, only to be frustrated by incomprehensible jargon? Randall Munroe is here to help. In Thing Explainer, he uses line drawings and only the thousand (or, rather, "ten hundred") most common words to provide simple explanations for some of the most interesting stuff there is, including: food-heating radio boxes (microwaves)tall roads (bridges)computer buildings (datacenters)the shared space house (the International Space Station)the other worlds around the sun (the solar system)the big flat rocks we live on (tectonic plates)the pieces everything is made of (the periodic table)planes with turning wings (helicopters)boxes that make clothes smell better (washers and dryers)the bags of stuff inside you (cells) How do these things work? Where do they come from? What would life be like without them? And what would happen if we opened them up, heated them up, cooled them down, pointed them in a different direction, or pressed this button? In Thing Explainer, Munroe gives us the answers to these questions and so many more. Funny, interesting, and always understandable, this book is for anyone--age 5 to 105--who has ever wondered how things work, and why. 2015. Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [US] 

16. Thing Explainer
by Munroe Randall 
Price: USD 26.99
Dealer: Biblio, Russell Books Ltd
Description: Houghton Mifflin Harcourt. New. Special order direct from the distributor Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [CA] 

17. Thing Explainer Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 33.50
Dealer: Biblio, A Good Read
Description: Dey Street Books. New in New dust jacket. Date: 2015. Hardcover. 0544668251 . A Good Read ships from Toronto and Niagara Falls, NY - customers outside of North America please allow two to three weeks for delivery. ; 9 X 0.585 X 13 inches; 64 pages . 2015. Dey Street Books ISBN 0544668251 9780544668256 [US] 

18. Thing Explainer Complicated Stuff in Simple Words
by Munroe, Randall 
Price: USD 33.50
Dealer: Abebooks, A Good Read
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Dey Street Books] Hardcover A Good Read ships from Toronto and Niagara Falls, NY - customers outside of North America please allow two to three weeks for delivery. ; 9 X 0.585 X 13 inches; 64 pages [Toronto, ON, Canada] [Publication Year: 2015]  

19. Thing Explainer Complicated Stuff in Simple Words
by Randall Munroe 
Price: USD 33.18
Dealer: Abebooks, PBShop.store US
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: HarperCollins] Hardcover New Book. Shipped from UK. Established seller since 2000. [Wood Dale, IL, U.S.A.] [Publication Year: 2015]  

20. Thing Explainer: Complicated Stuff in Simple Words (Hardback or Cased Book)
by Munroe, Randall 
Price: USD 21.26
Dealer: Abebooks, BargainBookStores
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Houghton Mifflin 11/24/2015] Hardcover Thing Explainer: Complicated Stuff in Simple Words 1.8 [Grand Rapids, MI, U.S.A.] [Publication Year: 2015]  

21. Thing Explainer: Complicated Stuff in Simple Words
by Houghton Mifflin Harcourt 
Price: USD 38.75
Dealer: Biblio, Revaluation Books
Description: Houghton Mifflin Harcourt, Date: 2015. Hardcover. New. 61 pages. 16.00x12.00x0.25 inches. 2015. Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [GB] 

22. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 14.84
Dealer: Biblio, Amazing Bookshelf, Llc
Description: Houghton Mifflin. New.. Houghton Mifflin, 2015. Annotated.. New. . 2015. Annotated.. New.. Sewn binding. Cloth over boards. 64 p. Contains: Illustrations. Audience: General/trade. . Houghton Mifflin ISBN 0544668251 9780544668256 [US] 

23. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 18.99
Dealer: Biblio, Amazing Bookshelf, Llc
Description: Houghton Mifflin. New. Houghton Mifflin, 2015 Annotated New 2015 Annotated Hard cover New in new dust jacket Sewn binding Cloth over boards 64 p Contains: Illustrations Audience: General/trade Have you ever tried to learn more about some incredible thing, only to be frustrated by incomprehensible jargon? Randall Munroe is here to help In Thing Explainer, he uses line drawings and only the thousand (or, rather, ten hundred ) most common words to provide simple explanations for some of the most interesting stuff there is, including: food-heating radio boxes (microwaves) tall roads (bridges) computer buildings (datacenters) the shared space house (the International Space Station) the other worlds around the sun (the solar system) the big flat rocks we live on (tectonic plates) the pieces everything is made of (the periodic table) planes with turning wings (helicopters) boxes that make clothes smell better (washers and dryers) the bags of stuff inside you (cells) How do these things work? Where do they come from? What would life be like without them? And what would happen if we opened them up, heated them up, cooled them down, pointed them in a different direction, or pressed this button? In Thing Explainer, Munroe gives us the answers to these questions and so many more Funny, interesting, and always understandable, this book is for anyone age 5 to 105 who has ever wondered how things work, and why Houghton Mifflin ISBN 0544668251 9780544668256 [US] 

24. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 6.79
Dealer: Biblio, Blue Vase Books LLC
Description: UsedGood. The item shows wear from consistent use, but it remains in good condition and works perfectly. All pages and cover are intact (including the dust cover, if applicable). Spine may show signs of wear. Pages may include limited notes and highlighting. May NOT include discs, access code or other supplemental materials. ISBN 0544668251 9780544668256 [US] 

25. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 26.64
Dealer: Biblio, BookCorner COM LLC
Description: UsedVeryGood. signs of little wear on the cover. ISBN 0544668251 9780544668256 [US] 

26. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 26.91
Dealer: Biblio, BookCorner COM LLC
Description: UsedLikeNew. Remainder mark ISBN 0544668251 9780544668256 [US] 

27. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 27.18
Dealer: Biblio, BookCorner COM LLC
Description: New. . ISBN 0544668251 9780544668256 [US] 

28. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 18.00
Dealer: Biblio, Common Crow Books
Description: Boston: Houghton Mifflin Harcourt, Date: 2015. First printing. Hardcover. Very Good +/very good +. Quarto, illustrated boards in dust jacket, both jacket and book are in very good + condition, jacket has light edge wear, book has light overall wear, 61pp. 2015. Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [US] 

29. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 27.18
Dealer: Biblio, Ebooksweb COM LLC
Description: New. . ISBN 0544668251 9780544668256 [US] 

30. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 26.91
Dealer: Biblio, Ebooksweb COM LLC
Description: UsedLikeNew. Remainder mark ISBN 0544668251 9780544668256 [US] 

31. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 26.64
Dealer: Biblio, Ebooksweb COM LLC
Description: UsedVeryGood. signs of little wear on the cover. ISBN 0544668251 9780544668256 [US] 

32. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 17.77
Dealer: Biblio, Ergodebooks
Description: Houghton Mifflin Harcourt, Date: 2015-11-24. Hardcover. Used:Good. Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [US] 

33. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 8.98
Dealer: Biblio, Ergodebooks
Description: Houghton Mifflin Harcourt, Date: 2015-11-24. Annotated. hardcover. Used: Good. Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [US] 

34. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 23.50
Dealer: Biblio, Ergodebooks
Description: Houghton Mifflin Harcourt, Date: 2015-11-24. Hardcover. Used:Good. Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [US] 

35. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 3.07
Dealer: Biblio, Goodwill Industries of the Inland Northwest
Description: UsedLikeNew. Condition Good: Book is used and in good condition with some wear from use. This may include stickers on cover, wear to dustcover/missing dustcover, inside cover, spine, slight curled corners, stains, and wear to the fore edge. All orders ship via UPS Mail Innovations. Shipping can take up to 14 business days from first scan to be delivered. ISBN 0544668251 9780544668256 [US] 

36. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 2.71
Dealer: Biblio, Goodwill of the San Francisco Bay
Description: UsedGood The cover has visible markings and wear. . ISBN 0544668251 9780544668256 [US] 

37. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 9.67
Dealer: Biblio, Magers and Quinn Booksellers
Description: Houghton Mifflin Harcourt. Used - Very Good. May have light to moderate shelf wear and/or a remainder mark. Complete. Clean pages. Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [US] 

38. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 26.64
Dealer: Biblio, Phillybooks COM LLC
Description: UsedVeryGood. Minor shelf wear ISBN 0544668251 9780544668256 [US] 

39. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 27.18
Dealer: Biblio, Phillybooks COM LLC
Description: New. . ISBN 0544668251 9780544668256 [US] 

40. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 26.91
Dealer: Biblio, Phillybooks COM LLC
Description: UsedLikeNew. Remainder mark ISBN 0544668251 9780544668256 [US] 

41. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 23.00
Dealer: Biblio, SOUTHAUSTRALIANBOOKS
Description: Dey Street Books, Date: 2015-11-23. hardcover. New. 9x0x13. Dey Street Books ISBN 0544668251 9780544668256 [US] 

42. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 10.98
Dealer: Biblio, Wonder Book
Description: Dey Street Books. Used - Very Good. Very Good condition. Very Good dust jacket. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner’s name, short gifter’s inscription or light stamp. Dey Street Books ISBN 0544668251 9780544668256 [US] 

43. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 5.59
Dealer: Biblio, World of Books Ltd
Description: Paperback. Very Good. ISBN 0544668251 9780544668256 [GB] 

44. Thing Explainer: Complicated Stuff in Simple Words
by Munroe Randall 
Price: USD 5.59
Dealer: Biblio, World of Books Ltd
Description: Paperback. Good. ISBN 0544668251 9780544668256 [GB] 

45. Thing Explainer: Complicated Stuff in Simple Words
by Randall Munroe 
Price: USD 26.99
Dealer: Biblio, Borderlands Books
Description: Houghton Mifflin Harcourt, Date: 2015. Later Edition. Oversized Hardcover. New (Condition varies from Fine to Near Fine. Please inquire as to specific condition)/New (Condition varies from Fine to Near Fine. Please inquire as to specific condition). New 2015. Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [US] 

46. Thing Explainer: Complicated Stuff in Simple Words
by Randall Munroe 
Price: USD 24.69
Dealer: Biblio, The Saint Bookstore
Description: Hardback. New. ISBN 0544668251 9780544668256 [GB] 

47. Thing Explainer: Complicated Stuff In Simple Words ; 9780544668256 ; 0544668251
by Munroe, Randall 
Price: USD 16.64
Dealer: Abebooks, APlus Textbooks
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Dey Street Books] Hardcover Limited Copies Available - Very Good Condition - May have school stamp and/or student names - May have some cover wear - DOES NOT INCLUDE ANY CDs OR ACCESS CODES IF APPLICABLE [Alpharetta, GA, U.S.A.] [Publication Year: 2015]  

48. Thing Explainer: Complicated Stuff in Simple Words [Hardcover] Munroe, Randall
by Munroe, Randall 
Price: USD 12.49
Dealer: Abebooks, MI Re-Tale
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Houghton Mifflin Harcourt] Hardcover Very nice book. DJ has minor wear. [Dacula, GA, U.S.A.] [Publication Year: 2015]  

49. Thing Explainer: Complicated Stuff in Simple Words by Munroe, Randall [Hardcover ]
by Munroe, Randall 
Price: USD 21.28
Dealer: Abebooks, booksXpress
Description: ISBN10: 0544668251, ISBN13: 9780544668256, [publisher: Houghton Mifflin Harcourt] Hardcover [Bayonne, NJ, U.S.A.] [Publication Year: 2015]  

50. Thing Explainer: Complicated Stuff in Simple Words Hardcover Munroe Randall
by Munroe Randall 
Price: USD 12.49
Dealer: Biblio, Re-Tale
Description: Houghton Mifflin Harcourt, Date: 2015-11-24. Hardcover. Very Good. Very nice book. DJ has minor wear. Houghton Mifflin Harcourt ISBN 0544668251 9780544668256 [US]