Alan Yentob asks why self-help books are so popular. Setting out to learn from the big hitters, he speaks to Susan Jeffers, author of Feel The Fear And Do It Anyway, and Anthony Robbins, motivator to the stars. Yentob discovers self-help is not quite as shallow as he thought. One of the most acclaimed self-help books of all time, Man's Search for Meaning, came out of a concentration camp.