"Common sense"
The idea is common sense. Master something and you will do well. I like Robert Greene's 48 laws of power. Excellent story telling, entertaining and useful. However, mastery is somewhat similar. I did not think it was worth listening. Didn't finish until end and wish i could return for something I have not yet heard.
"Concise and to the point"
Yes. Good points. Concise and to the point. Helpful and powerful ways to stop negative self talk and standing up to guilt and self neglect.