The present book on ‘‘Power Series Solution and Special Functions’’ has been written as a textbook according to the latest guidelines and syllabus in Mathematics issued by the U.G.C. for various universities. The text of the book has been prepared with the following salient features. The language of the book is simple and easy to understand. Each topic has been presented in a systematic, simple, lucid and exhaustive manner. A large number of important solved examples properly selected from the previous university question papers have been provided to enable the students to have a clear grasp of the subject and to equip them for attempting problems in the university examination without any difficulty. Apart from providing a large number of examples, different type of questions in ample quantity have been provided for a thorough practice to the students. A large number of ‘notes’ and ‘remarks’ have been added for better understanding of the subject.