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