Self improvement is usually a process which is undertaken after a lot of consideration and the the person who take to such a task is highly motivated. One reason for the sudden rise in the usage self improvement techniques is that most people who undertake such a task usually prefer to stay discreet about it and hence take help from the internet and and self-help books rather confiding in a person.
People remain discreet because they don't want others to be aware of their undertaking such a technique till the final result is attained and therefore take the help of such means of improvement.
