Craig Luebben was an AMGA Rock Guide Instructor and served on the Board of Directors for six years. He was the author or coauthor of nine books on climbing and wrote numerous gear reviews and travel articles for Climbing and Rock & Ice magazines. His FalconGuides Advanced Rock Climbing, coauthored with John Long, won the Mountain Exposition Award at the 1997 Banff Mountain Book Festival. Craig died in 2009 while leading a pitch on Mount Torment in North Cascades National Park.
Clyde Soles is a freelance writer and photographer with four decades of climbing experience. The former senior editor of Rock & Ice magazine, he has authored or coauthored nine outdoor how-to books, including two other knots books.