The Red Book of Mathematical Problems More Books Like This
The Green Book of Mathematical Problems
2013
The IMO Compendium
2011
The IMO Compendium
2006
104 Number Theory Problems
2007
An Introduction to Number Theory with Cryptography
2018
The Math Problems Notebook
2007
A Concise Introduction to Pure Mathematics
2018
An Excursion through Elementary Mathematics, Volume III
2018
Elementary Number Theory
2012
Number Theory
2009
The Art of Proving Binomial Identities
2019
University of Toronto Mathematics Competition (2001–2015)
2016
A Bridge to Higher Mathematics
2016
The Real Number System
2018
An Excursion through Elementary Mathematics, Volume I
2017