A Picture is Worth a Thousand Words …
Not every illustration and cartoon has to be funny. Sometimes the message is so difficult that just a touch of humor (or sugar) makes the medicine go down easier.
Perhaps your message is complicated and you’ve noticed your audience stumbling over a particular point or subject matter. Perhaps an illustration is needed to help those attendees visualize the concept more clearly.
If your message is important enough for you to devote your time and energy to delivering it, then you will want to pay attention to the high number of individuals who are visual learners.