Since Jaws appeared in 1975, sharks are largely seen as voracious killing machines. Yet in a typical year only four people might die in shark attacks, while humans will kill 100 million sharks, and many species have become vulnerable. In this companion volume to his documentary film, William McKeever takes a deep dive into the vastly misunderstood world of sharks—specifically, great whites, makos, hammerheads, and tigers—and introduces the scientists and conservationists who are solving the mysteries surrounding these vitally important creatures.