Does for microbiology what Dr Joe Schwarcz's Brain Fuel (Anchor, 2010) did for chemistry: informs and entertains with accessible mini-essays. Jason Tetro, author of The Germ Code (Doubleday, 2013, also available), is back with a very different book but the same message: microbes are amazing, they deserve our respect and we should learn to live with them in harmony.The Germ Files is a series of brief, brilliant essays, arranged into themes such as health, child care, sex and the environment.