Appropriate for one- or two-semester, junior- to senior-level combinatorics courses. This trusted best-seller covers the key combinatorial ideas–including the pigeon-hole principle, counting techniques, permutations and combinations, Pólya counting, binomial coefficients, inclusion-exclusion principle, generating functions and recurrence relations, combinatortial structures (matchings, designs, graphs), and flows in networks. The Fifth Edition incorporates feedback from users to the exposition throughout and adds a wealth of new exercises.
For the most part I found it to be very boring and not as useful as I hoped. I found myself constantly having to go to outside sources to do effective studying, which I normally do anyway; but instead of the outside sources being supplementary to the text, they had become primary over the text.
This was required for a course. Pretty good introductory text, and the book did a good job of explaining topics when they needed expanding upon, and keeping a decent pace in general.