Only people like that buy books like this...or write them." So says Robert Mankoff--and he should know. As cartoon editor of The New Yorker , and one of its most gifted contributors, he spends his life pursuing that elusive thing called creativity, and inspring it in others. If you've ever wondered where great ideas come from, or yearned to channel your creative energies, or just wanted some pointers on how to get those artisitic juices flowing--this...