This truly elementary book on categories introduces retracts, graphs, and adjoints to students and scientists.

In the last fifty years, the use of the notion of 'category' has led to a remarkable unification and simplification of mathematics. Written by two of the best k

In this charming volume, a noted English mathematician uses humor and anecdote to illuminate the concepts of groups, sets, subsets, topology, Boolean algebra, a

Give math students the connections between what they learn and how they do math—and suddenly math makes sense If your secondary-school students are fearful of

This is not a mathematics book, but a book about mathematics, which addresses both student and teacher, with a goal as practical as possible, namely to initiate