Principles and Techniques in Combinatorics (Best Copy)

This is the best copy of

Principles and Techniques in Combinatorics

available as a PDF. it has searchable text, a complete outline, and the table of contents has links to all of the sections.

Description:
A textbook suitable for undergraduate courses. The materials are presented very explicitly so that students will find it very easy to read. A wide range of examples, about 500 combinatorial problems taken from various mathematical competitions and exercises are also included.