For majors courses in Introductory Microbiology in departments of biology and microbiology, and for upper-level non-majors courses in Microbiology.The authoritative text for introductory microbiology, Brock's Biology of Microorganisms continues its long tradition of impeccable scholarship, outstanding art, and accuracy. It balances the most current coverage with the major classical concepts essential for understanding the science. The authors' clear, accessible writing style speaks to today's students while maintaining the depth and precision science majors need.