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#2
2014 • 1 Reader • 4
#3
1982 • 1 Reader • 111 pages • 4
#4
Big Ideas Simply Explained
2013 • 5 Readers • 517 pages • 4
#5
2012 • 17 Readers • 245 pages • 4
#6
1997 • 11 Readers • 432 pages • 3.3
#7
2005 • 132 Readers • 336 pages • 3.8