Personal development is a very large area that covers a lot of things. And there are many, many ways in which people desire to develop personally. There are people who desire to be better at speaking at the appropriate times, because they know they talk too much. There are those who would like to be better listeners. And those who, being extremely bashful, want to learn to talk more and to join in with the crowd.
There are thousands upon thousands who would like to learn to be better parents and even those who want to become more respectful children. There are those who want to become better golfers, better dancers, better computer programmers, better planners, better organizers, better doctors and better surfers. The list goes on and on forever. And just as there are so many things that people long to become better at, there are also so many ways of accomplishing it.