Review"Enormous fun, and you don't even have to follow any difficult arguments; a treasure-trove for the mathematical beachcomber."The Mathematical Gazette"I think all mathematicians should own this book...there are sections where the author conveys admirably his excitement over some unexpected and beautiful sequence of ideas. I pay the author the earnest compliment of stating that nearly every page in the book is an adventure."The Mathematical Intelligencer"Very accessible...The author's clear and engaging style makes the book a pleasure to read."MAA Reviews"This is a very useful book...The emphasis is on the mathematical origin of the constants and their interrelationships. The aim is always to be clear and complete, to motivate why a particular constant or idea is important, and to indicate exactly where in the literature one should look for rigorous proofs and further elaboration. This book should be in each mathematical library."Monatshefte für Mathematik"I consider this book to be an essential component of all mathematical libraries. I have placed it on my 'within the grasp' shelf and have strongly recommended to the college library that it be added to the reference collection."Charles Ashbacher, amazon.com"The present book fully lives up to all expectations... it presents much material that was not before available in book form, and also gathers together related but previously scattered material... Readers are likely to enjoy this encyclopedic format even if not all of the subtopics are of immediate interest."Thomas Britz, Mathematical ReviewsBook DescriptionA thorough development of certain classes of matrices that have combinatorial definitions or significance.About the AuthorRichard A. Brualdi is UWF Beckwith Bascom Professor of Mathematics at the University of Wisconsin, Madison.