Bacteria form a fundamental branch of life They are the oldest forms of life as we know it & they are still the most prolific living organisms They inhabit every part of the Earth's surface its ocean depths & even terrains such as boiling hot springs They are most familiar as agents of disease but benign bacteria are critical to the recycling of elements & all ecology as well as to human health In this Very Short Introduction Sebastian Amyes explores the nature of bacteria their origin & evolution bacteria in the environment & bacteria & disease In looking at our efforts to manage co-evolving bacteria he also considers the challenges of resistance to antibiotics ABOUT THE SERIES The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area These pocket-sized books are the perfect way to get ahead in a new subject quickly Our expert authors combine facts analysis perspective new ideas & enthusiasm to make interesting & challenging topics highly readable