Etan Boritzer's 5th book in his best selling What is? series of children's titles dealing with life concepts asks children to consider the various contradictions in laughing at others, as well as the possibility of laughing at oneself. Gently suggesting a thoughtful approach to tolerance through humor, Boritzer (b. 1950) presents a subject we take for granted and looks at the various subtleties of what laughter is really about. Illustrated by Jeff Day to reflect the diversity of today's children and adults, the images and message here is one of positive values, compassion and acceptance.