Take a deep dive with the Great Whites and chart the survival of a species with Michael Muller's call to arms in a book of breakthrough underwater photography. Dr Allison Kock writes about the sharks in this book as we take a look at a decade at sea and the expeditions, shark statistics, conservation resources, but best of all huge quality underwater photography in both striking black and white and colour marine blue. See the red mouths and jagged teeth exposed, the tiny fearsome eyes and the even tinier bodies of the skilful photographer-divers. A mother feeds her young in the cool blue shallow waters, striped fish circle a Great White, a Hammerhead grazes along the sand at the bottom of an ocean, sharks fight, feed and are cleaned, eye a big colourful catch or skim below the surface. With picture index from Guadalupe Island, to bull sharks in Beqa May 2011, a lemon shark in Grand Bahama Island November 2014, a black tip, blue sharks, mako, nurse sharks and tiger sharks, silky sharks and many great whites and with short descriptions of each. The furthest distance travelled by a tagged shark is 34,500 miles, and the years since sharks' bodies have evolved significantly is 140 million years and 440 million years since sharks first appeared.