Denise's "Let's play math!" Store

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	Godel, Escher, Bach: An Eternal Golden Braid by Douglas R. Hofstadter Buy new: $15.61 / Used from: $7.95
	Hackers and Painters: Big Ideas from the Computer Age by Paul Graham Buy new: $15.61 / Used from: $9.13
	An Introduction to General Systems Thinking (Silver Anniversary Edition) by Gerald M. Weinberg Buy new: $29.21 / Used from: $20.44
	What Is Mathematics? An Elementary Approach to Ideas and Methods by Richard Courant Buy new: $16.47 / Used from: $14.82
	Concrete Mathematics: A Foundation for Computer Science (2nd Edition) by Ronald L. Graham Buy new: $53.92 / Used from: $40.00
	A Briefer History of Time by Stephen Hawking Buy new: $17.82 / Used from: $5.85
	God Created the Integers: The Mathematical Breakthroughs that Changed History by Stephen Hawking Buy new: $15.61 / Used from: $0.63
	How to Solve It: A New Aspect of Mathematical Method (Princeton Science Library) by G. Polya Buy new: $12.89 / Used from: $11.96
	Surely You're Joking, Mr. Feynman! (Adventures of a Curious Character) by Richard P. Feynman Buy new: $10.85 / Used from: $2.63
	The Feynman Lectures on Physics including Feynman's Tips on Physics: The Definitive and Extended Edition by Richard P. Feynman Buy new: $122.85 / Used from: $148.72
	The Essential Turing: Seminal Writings in Computing, Logic, Philosophy, Artificial Intelligence, and Artificial Life plus The Secrets of Enigma by Alan M. Turing Buy new: $30.98 / Used from: $14.96

	The Cathedral & the Bazaar: ... by Eric S. Raymond $11.56
	Systems Thinking Basics: From Co... by Virginia Anderson; Lauren Johnson $39.95
	Weinberg on Writing: The Fieldst... by Gerald M. Weinberg $22.45