Jon Sparks has been a full-time photographer since a 6-week trek in the Karakoram Mountains of Pakistan in 1990 convinced him that his passion from childhood should become his career. His name is now on almost 30 books, including guides to every current Nikon digital SLR. Jon is a member of the Outdoor Writers and Photographers Guild. Chiz Dakin, winner of the Outdoor Writers and Photographers Guild Award for Excellence in Photography in 2008/9, is passionate about travelling and the outdoors. She is keen on mountain walking, scrambling and cycling and has visited all seven continents. Wherever she goes she always ensures she has her camera with her.