https://www.zgallerie.com/p-10085-farts-a-spotters-guide.aspx?source=myregistry
Farts: A Spotters Guide by Crai S. Bower is a hilarious, highly descriptive primer on ten different varieties of farts, characterized by field marks, voice, habitat and geographical range. The accompanying battery operated audio confirms the type of fart by sound. Colorful, heavy cardboard pages with illustrations. Measures 6.75” x 8.25”.