The book explains what lateral thinking is by relating it to some other terms. Humor, creativity and insight all share basis with lateral thinking. I think humor is often forgotten when talking about creativity, so introducing it to the conversation helps to expand the understanding of lateral thinking. I also think comparing it to vertical thinking, which is more usual, helps to understand better the concept. The analogy of digging a hole was amazing for me, it cleared out the difference and how both complete each other. I also liked the way artistic creativity was approached and how there is usually the misconception that creativity is a gift that only few posses. The book also highlights the importance of lateral thinking as a process sand not something that “just happens”