Data structure is the backbone of computer science. A number of books on this subject are available that are enriching the students as per their own methodology. However, this book is written to facilitate the user in self learning. Other objectives of this book are: -Use of simple language for coding. -In majority of the cases, both recursive and non-recursive functions have been used for single operation. -Object oriented approach using C++ to code the program. -Code is substantiated with ample of figures and description. -All the written codes are tested and executed. -Written considering the novice and experts. -Each chapter is followed by case study. -Inclusion of exercise at the end of the chapter to enable the student to evaluate themselves.