Harvard Book Store welcomes the ”New Yorker” cartoon editor to discuss, “How About Never — Is Never Good for You?” which is the title of his new memoir but also something Mankoff once yelled at his editor, then he had to pretend to laugh and hope his editor laughed too, and he did, and they both laughed and that’s why he kept his job long enough to write a whole book about cartoons. If you’re lucky he might even divulge some secrets to winning the magazine’s famous caption contest.