ERIK WEIHENMAYER is an athlete, adventurer, author, activist and motivational speaker, and the only blind person to reach the summit of Mount Everest. He also completed the Seven Summits, joining 150 mountaineers who had accomplished that feat, but the only climber who was blind. He is the bestselling author of Touch the Top of the World and The Adversity Advantage. Weihenmayer co-founded No Barriers USA, which helps those with special challenges to live active and purposeful lives. He lives in Colorado.