Book Review - This book consist of five chapters, the first chapter gives introduction, history of gel techniques. This chapter also deals with structure and property of gel as well as type of gel and all type of crystal growth method. Next chapter present brief review of experiment techniques for characterizes the crystal grown. Third chapter deal with the growth and characterization of Sr1-xMnxC4H4O6 nH2O , For X0.5 and finally general discussion and conclusion. This book is well presented and contains.It is useful to Research student who work in crystal growth by gel grown technique. It is written and compiled for professionals and practitioners, materials scientists, physicists, and chemists at universities and in industrial research and production. I highly recommend this book to Research student who work in crystal growth by gel grown technique. Dr Nikesh Shah, Professor, Department Of physics Saurashtra university,Rajkot(india)