| Want to learn how to tackle those tough MATHCOUNTS and AMC counting and probability problems? Check out Art of Problem Solving's Introduction to Counting & Probability by David Patrick. |
Art of Problem Solving (AoPS) texts are designed for outstanding math students and present a broader and deeper mathematics education than the standard curriculum. The AoPS texts have been used by thousands of top students in contests such as MATHCOUNTS and the AMC.

