This package includes a three-hole punched, loose-leaf edition of ISBN 9781118914588 and a registration code for the WileyPLUS course associated with the text. Before you purchase, check with your instructor or review your course syllabus to ensure that your instructor requires WileyPLUS. For customer technical support, please visit http://www.wileyplus.com/support. WileyPLUS registration cards are only included with new products. Used and rental products may not include WileyPLUS registration cards. Microbiology: Principles and Explorations has been a best-selling textbook for several editions due to the authors engaging writing style. The 9th edition’s student-friendly approach provides readers with an excellent introduction to the study of Microbiology. This text is appropriate for non-major and mixed major microbiology courses, as well as allied health, agriculture, and food sciences courses.