When this work was first published in the first half of the last century, sexology and the unprejudiced study of sexual activity was in its infancy. Kinsey in his study of human sexual behavior was able to state that the majority of human beings had masturbated at one time or another but to us today this probably remains quite an astonishing statement to have to make. The whole field was surrounded by ignorance and superstition. The medical profession was regrettably the worst offender and the most ignored. This is why this book was such a revelation step and much ahead of its time.