Winter began his career as a photojournalist. When he began photographing wildlife, he realized that making nice animal portraits was doing a disservice. Portraits fail to show the animals' full stories. Since then, he's been trying to capture the full breadth of the threats, problems, and solutions that surround tigers and other wild animals. There are only 3,200 wild tigers out there now, and with the forces working against them (poaching, habitat encroachment, and more) the book could leave readers feeling as though the situation is quite dire.