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Description: Good. Great reading material, may show signs of wear. Ship fast,... Good. Great reading material, may show signs of wear. Ship fast, satisfaction guaranteed. Your generous support helps us change lives. Thanks for your order!

Description: Fair. 0226458083 A good value based purchase. Acceptable... Fair. 0226458083 A good value based purchase. Acceptable condition. Used texts may NOT contain supplemental materials such as CD A good value based purchase. Acceptable condition. Used texts may NOT contain supplemental materials such as CD Tracking whenever available.

Description: Good. May have minimal notes/highlighting, minimal wear/tear.... Good. May have minimal notes/highlighting, minimal wear/tear. Additional Supplements May not be Included unless previously specified. Please contact us if you have any Questions.

Description: Acceptable. Intact & readable. PLEASE NOTE~ we rated this book... Acceptable. Intact & readable. PLEASE NOTE~ we rated this book USED~ACCEPTABLE due to likely defects such as highlighting, writing/markings, folds, creases, ETC. We ship from Dallas within 1 day & we LOVE our customers! Satisfaction guaranteed.

Description: Fair. Contains heavy marking but in readable condition.... Fair. Contains heavy marking but in readable condition. Acceptable reading copy. Give this book a good home.

Description: Fair. Connecting readers with great books since 1972. Used books... Fair. Connecting readers with great books since 1972. Used books may not include companion materials, some shelf wear, may contain highlighting/notes, may not include cdrom or access codes. Customer service is our top priority!

Description: Fair. Some shelf wear, may contain highlighting/notes, may not... Fair. Some shelf wear, may contain highlighting/notes, may not include cdrom or access codes, customer service is our top priority!

Description: Fair. Some shelf wear, may contain highlighting/notes, may not... Fair. Some shelf wear, may contain highlighting/notes, may not include cdrom or access codes, customer service is our top priority!

Description: Fair. Some shelf wear, may contain highlighting/notes, may not... Fair. Some shelf wear, may contain highlighting/notes, may not include cdrom or access codes, customer service is our top priority!

Description: Good. 978-0226458083. Used in trade paperback. A servicable... Good. 978-0226458083. Used in trade paperback. A servicable reading copy only. Pink highlighting, some ink margin notes, mostly in the first few pages.; 8vo 8"-9" tall; 212 pages; "An analysis of the history of science, (first) published in 1962. Its publication was a landmark event in the history, philosophy, and sociology of scientific knowledge and it triggered an ongoing worldwide assessment and reaction in ó and beyond ó those scholarly communities. In this work, Kuhn challenged the then prevailing view of progress in "normal science." Scientific progress had been seen primarily as "development-by-accumulation" of accepted facts and theories. Kuhn argued for an episodic model in which periods of such conceptual continuity in normal science were interrupted by periods of revolutionary science. During revolutions in science the discovery of anomalies leads to a whole new paradigm that changes the rules of the game and the "map" directing new research, asks new questions of old data, and moves beyond the puzzle-solving of normal science. -from Wikipedia.