The most effective type of humor for a leader is to keep in mind a large collection of jokes so he or she can tell one for most occasions.

While having a good sense of humor can be beneficial for a leader, relying solely on a collection of jokes may not be the most effective approach. It's important for a leader to be able to adapt their humor to different situations and audiences, and to be able to use humor in a way that is inclusive and not offensive to others. Additionally, a leader's humor should not detract from their ability to be taken seriously or to make important decisions.