A Mathematical Mosaic: Patterns & Problem Solving, written by Ravi Vakil, a math competition legend according to the San Francisco Chronicle, has finally been updated. The original edition of A Mathematical Mosaic, which is widely regarded as a key book in the field of mathematics contests, has won praise from professors, instructors, and the larger mathematical community. In the pages of this book, Ravi reveals what mathematics is actually all about: grace, beauty, and the identification of intricate patterns. It’s generally easiest to understand these natural patterns through puzzles and difficulties, both simple and complex. Eleven other Olympiad champions are also profiled, including Noam Elkies, who was Harvard University’s youngest tenure-track professor. Teachers who want to push their top pupils and students getting ready for math competitions should both read this book.