Knowledge is Power

The book is prepared for college and university students. This book provides all relevant information about the subject. The language of the book is kept simple to understand for a common student without any external help. The book is useful to research scholars, university teachers, college lecturers and students who desire a strong background in the subject. This book contains a wealth of information about various topics of this important subject. The author has made every attempt to own calculations. He has covered every conceptual framework of the subject. The method of presentation has ensured that a somewhat dry and different subject has been made extremely interesting and easy to understand. Having covered the whole gamut of the topics under the subject, the author hopes that such a comprehensive treatise will be very handy for college and university students.