In the early 1950s, and quite to his surprise, artist Norman Thelwell became popular for his equestrian-themed cartoons. In an effort to satisfy a devoted and growing international following, Thelwell developed a cartoon strip about a particular horse-crazy young lady and her wicked pony called "Penelope and Kipper." This became a book called Penelope, first published in 1972… 

Paperback, 96 pages