The rapidly expanding area of algebraic graph theory uses two different branches of algebra to explore various aspects of graph theory: linear algebra (for spectral theory) and group theory (for studying graph symmetry). These areas have links with other areas of mathematics, such as logic and harmonic analysis, and are increasingly being used in such areas as computer networks where symmetry is an important feature. Other books cover portions of this material, but this book is unusual in covering both of these aspects and there are no other books with such a wide scope. Peter J. Cameron,...

"If you are interested in the beauty of mathematics, you must go out and buy Robin Wilson's absolutely stunning book of mathematical stamps, a book which traces the history of mathematics through images on the postage of countries around the globe."

- Victor Katz, MAA Online

Postage stamps are an attractive vehicle for presenting mathematics and its development. For many years the author has presented illustrated lectures entitled Stamping through Mathematics to school and college groups and to mathematical clubs and societies, and has written a regular Stamps...