Readers praise the careful balance of microbiology concepts and applications and the straightforward presentation of complex topics in Microbiology: An Introduction, making it the #1 non-majors microbiology book. The Seventh Edition Media Update includes a new laboratory simulation CD-ROM, VirtualUnknown(tm) Microbiology; the Microbiology Interactive Student Tutorial CD-ROM; and access to the resource-rich Microbiology Place web site, (www.microbiologyplace.com).