Buck Tilton has the knack! A leading wilderness medicine expert and Backpacker magazine columnist, he is the author of Backcountry First Aid and Wilderness First Responder (both FalconGuides®), as well as Knack Knots You Need. He teaches at Central Wyoming College. Stephen Gorman is a photographer and writer whose photo-essay books include Northeastern Wilds and The American Wilderness. His work has also appeared in Knack Canoeing for Everyone and Knack Car Camping for Everyone, as well as numerous national magazines, including Outside and Audubon.