Don Mammoser is a full-time professional nature photographer, photo tour leader, and author. He is a veteran of the United States Air Force. He has a Bachelor of Science degree from the University of South Florida, which led to positions with the US Fish and Wildlife Service and for the University of North Carolina. It was while working as an endangered species biologist when he first became serious with photography and thus realized his lifelong passion of being in nature or traveling and photographing all the genuinely good things that the world offers.

Don's publishing credits include numerous magazines, books, and calendars, as well as The Photographer's Guide to the Colorado Rockies and the travel memoir A Photographer's Eye and A Traveler's Heart, written along with his wife, Anya.

Don lives in Parker, Colorado, with Anya and their two daughters, Siena and Skyler. He offers small-group guided photography tours to amazing destinations throughout the world, and he also teaches photography subjects on his YouTube channel, "Don Mammoser Photo."

Naturalist, wildlife photographer and writer Stan Tekiela is the author of more than 190 field guides, nature books, children's books, wildlife audio CDs, puzzles and playing cards, presenting many species of birds, mammals, reptiles, amphibians, trees, wildflowers and cacti in the United States. With a Bachelor of Science degree in Natural History from the University of Minnesota and as an active professional naturalist for more than 30 years, Stan studies and photographs wildlife throughout the United States and Canada. He has received various national and regional awards for his books and photographs. Also a well-known columnist and radio personality, his syndicated column appears in more than 25 newspapers and his wildlife programs are broadcast on a number of Midwest radio stations.