 Kepler's Conjecture: How Some of the Greatest Minds in History Helped Solve One of the Oldest Math Problems in the World by George G. Szpiro, 17 January, 2003
 The Science of Conjecture: Evidence and Probability before Pascal by James Franklin, September, 2002
 The Goldbach Conjecture (2nd Edition) by Yuan Wang, January, 2003
 Conjectures and Refutations: The Growth of Scientific Knowledge (Routledge Classics) by Karl Popper, September, 2002
 Uncle Petros and Goldbach's Conjecture by Apostolos K. Doxiadis, February, 2001
 Conjecture and Proofs: An Introduction to Mathematical Thinking by Dianedriscoll Schwartz, Diane Driscoll Schwartz, 24 July, 1996
 The Last Three Minutes: Conjectures About the Ultimate Fate of the Universe (Science Masters Series) by P. C. W. Davies, January, 1997
 Conjectures and Refutations by Karl Raimund Popper, April, 1992
 Conjectures of a Guilty Bystander: Introduction by Thomas Moore by Thomas Merton, Thomas Moore, 09 February, 1968
 Conjecture and Proof by MiklÃ³s Laczkovich, Miklos Laczkovich, 01 June, 2001
