I bought this book to augment my text book/studyguide for my University 300 level introductory medical microbiology course. This book fit the bill perfectly. It is in a question and answer format, has pictures, diagrams and quizzes at the end of each chapter. I would read this before I read my textbook, and would do the practice quizzes after I read my textbook and it really helped me to understand and remember the concepts. This study guide is also a lot more up to date than my text book was, so that was nice as well. Great practice quizzes... I got a 4.0!