The 5th edition of Textbook of Microbiology has been revised and updated to keep pace with rapidly increasing information in medical science. laboratory diagnosis of various microbial infections has been simplified with the help of flowcharts. The text is presented in a simple and lucid manner. It is illustrated with coloured and computer-drawn figures, clinical photographs and photomicrographs. These make the book colourful and readers can have better understanding of the biology of microorganisms. Each chapter ends with key facts, and essay-type and multiple choice questions. The former summarize the whole chapter, and the latter help the student to know the type of questions asked in the examination. Overview of microbiology in the last chapter summarizes the book. The book is user-friendly, easy to understand, and will be highly useful to M.B.B.S., B.D.S., M.Sc. And M.D. microbiology students.