The science of Microbiology has offered profound insights, many within the last century, into the biological world and the relationships of human beings with their surroundings. Vital discoveries regarding microorganisms led to revolutions in several fields, including medicine, and provided tools and techniques that would allow the modern field of molecular biology to flourish. This course will explore the major areas of microbiology, including: Principles of microscopy and staining Structure and function of prokaryotic cells Growth and growth control of bacteria Classification of microorganisms Viral replication strategies Interactions between pathogen and host A survey of microbial disease The course will allow both biology students and non-majors alike to come to know our unseen companions, and appreciate both the beauty and challenges of sharing our world with microorganisms.