Humor at its best is a somewhat fluid and transitory element but most books about it are illustrated with hardened old jokes from the comic papers or classic witticisms jerked out of their context. Max Eastman in this work avoids this catastrophe by quoting mainly from contemporary American humor. This is not an anthology in that selections have been made with a view to making a point rather than covering the field. The purpose of Eastman's fabled work is to make the reader laugh. Since his early school days it has seemed to him that textbooks are wrongly written in that they are conducted in a way which ignores the natural operation of the mind. As a result the opinion is universal and under the circumstances a fact that in order to learn anything you have to study. Since this introduction to humor is itself near to writing a textbook Eastman uses the very text he constructs to illustrate the manner in which textbooks should be written. Examination and classification of the kinds of humorous experience upon the basis of a theory is a science. As such this work offers a fair chance to illustrate a method of instruction. However the distinction between a good joke and a bad one will not prevent the reader from making bad jokes nor enable one to make good ones. There is an artistic and playful element that simply cannot be taught. Enjoyment of Laughter presents a total view of the science of laughter and draws upon some of the great American humorists to do so.