Proofs from the book

About “Proofs from the book”

Proofs from THE BOOK is a collection of mathematical proofs written by Martin Aigner and Günter M. Ziegler, first published in 1998. The book takes its name from an idea associated with the mathematician Paul Erdős, who often spoke of "The Book," a hypothetical collection of the most elegant proofs of mathematical theorems. Erdős believed that the best proofs were those that came "straight from the Book." The authors compiled proofs that they considered to be particularly insightful and beautiful, reflecting the spirit of Erdős's belief in the existence of perfect mathematical proofs. (Summary adapted from Wikipedia, CC BY-SA 4.0.)