Logic is not enough. Edward de Bono coined the phrase "lateral thinking" to describe a process of thinking that is different from normal, vertical or forward thinking. Here are nearly a hundred mind-benders, from easy to fiendishly hard, that make you think laterally in order to explain the set of circumstances surrounding a seemingly inexplicable situation. 96 pages, 18 b/w illus., 5 3/8 x 8 1/4. Read Less