Students and instructors have made Microbiology: An Introduction the #1 non-majors microbiology text, praising its careful balance of microbiology concepts and applications and its straightforward presentation of complex topics. For the Seventh Edition, this successful formula has been refined with updated content and links to easy-to-use multimedia supplements, including the new Microbiology Place Web site and two CD-ROMs. This new edition is an accessible gateway to the most current material, technology, and applications for microbiology students.