To be sure, you don't want to get polio or Ebola, but viewed objectively under a powerful microscope, they possess an otherworldly beauty. Accompanied by informative captions, these colorful images highlight the surprising structure of Staphylococcus bacteria and dental plaque, while other photographs reveal what human cells look like when suffering from Alzheimer's, osteoporosis, or HIV. Rather than being white, cocaine looks like prismatic shards, while deadly nightshade is a lovely shade of gold. Here too are dazzling images of the medicines that we take, including magnified views of aspirin, insulin, morphine, caffeine, and Viagra—which could be mistaken for rainbow-tinted icebergs.