John Long is an acclaimed rock climber and author of more than forty books, including several in Falcon’s catalog. He is one of the most prolific adventure writers out there and has authored magazine articles, screenplays, documentary films, and television and movie scripts, as well as instructional rock climbing books.Bob Gaines began his career as a rock climbing guide in 1983 and is an American Mountain Guides Association Certified Rock Instructor. He is the author of Advanced Rock Climbing and the coauthor of Rock Climbing: The AMGA Single Pitch Manual, which is the textbook for the AMGA’s single pitch instructor program. He was Sylvester Stallone’s climbing instructor for the movie Cliffhanger.