The book entitled "Solubility and Dissolution enhancement of Some BCS Class II drugs by solid dispersion technique using natural polymer" is research topic of my PhD work. Its my great pleasure to introduce this work to readers and research scholar. I sure this book is warmly accepted by students of pharmacy post graduates which will create interest in the subject. The readers are requested to provide necessary feedback information for further improvement of the book which will be duly acknowledged. My sincere thanks to my colleagues, teachers and students who have encouraged and inspired me for this work. My special thanks My Mother, Father and Wife- Minal.