With marine biologist Dr. Alexander Mustard as your guide you can learn all you need to know to explore the amazing creatures and landscapes that exist underwater. From information about diving equipment and cameras, to crucial advice on understanding and controlling light underwater, this book provides all the background you need before you take the plunge. Topics covered include wide-angle light, macro lighting, ambient light and macro techniques. With the benefit of 30 years of experience taking underwater photographs, Alexander guides the reader in an authoritative yet accessible tone, along with sharing many stunning images of the weird and wonderful animals and sights he has encountered beneath the waves.