Updated with current research and new solutions to outstanding problems that have been discovered since the last edition, such as the solution to the well-known "four-color problem." Excursions Into Mathematics: This is an exciting revision of the original, much-loved classic. Everyone with an interest in mathematics should read this book.
"It is a cross between providing mathematical challenge and a cultural placement of some famous problems. I hope it will persuade non-mathematicians that mathematics is worthwhile, and provide mathematicians with some background to the personalities and history of the main stream, and, equally as important, to the quiet little-visited back-waters of their subject." -Tony Crilly, The Mathematical Gazette , March 2002