This book present the concepts of data structures in very clear and understandable manner. It covers data structures syllabus of different undergraduate and post graduate courses and can be useful for both beginners and professional programmers. This book can be used by students for self study as the concepts are explained in step by step manner followed by clear and easy to comprehend complete programs. The explanations are illustrated by detailed examples, figures and tables throughout the book. Exercises with solutions are provided which help in having a better understanding of the text. The CD-ROM contains all the programs given in the book. Some 'demo' programs are included in the CD, which demonstrate the step wise working of the algorithms.