This book is great to learn combinatorics from basics as it covers JEE/CAT/ACT/GRE syllabus completely and is more inclined towards the intuition of a human brain. This book focuses on experiential learning of the subject.
It took into the all new world of the combinatorics while developing intuitive map of working algorithms.
This book is suitable as a class text or for individual study. This trusted book covers the Concepts of Combinatorics including the counting techniques, Permutations and Combinations, Arrangements of objects in circular manner, Derangement, generating functions and recurrence relations.