Free Textbooks

Mastering AMC 8

The Mastering AMC 8 book covers the most important concepts on the AMC 8 exam with video lectures for every topic and hundreds of practice problems with video solutions. This includes problems from AMC 8, MATHCOUNTS, BmMT, EMCC, and many original problems.

• Combinatorics
• Algebra
• Number Theory
• Geometry

Award: The National Museum of Mathematics organizes the Strogatz Prize for Math Communications, which awarded an honorable mention to the Mastering AMC 8 book.

Updated: May 31, 2026

Mastering AMC 10/12

The Mastering AMC 10/12 book covers the most important concepts on the AMC 10/12 exam with video lectures for every topic and hundreds of practice problems with video solutions.

• Combinatorics
• Algebra
• Number Theory
• Geometry
• Logarithms
• Trigonometry
• Complex Numbers

Updated: May 31, 2026

The Book of Mathematical Formulas & Strategies

This book covers the most popular mathematical formulas and strategies. This book is a 140+ page collection of the most important theorems, formulas, and strategies for math competitions. This book should serve as a reference guide for quick review before any math competition, and should be useful for competitions like AMC 8, AMC 10/12, MATHCOUNTS, and AIME.

• Algebra
• Number Theory
• Combinatorics
• Geometry
• Trigonometry
• Logarithms
• Complex Numbers

Updated: May 31, 2026