I believe L. Richard Lessor wrote the first version of the tale, which was entitled "FUZZIES, a folk fable for all ages," and illustrated by Patricia Ellen Ricci It was first published in 1971 by ARGUS COMMUNICATIONS, Chicago, IL 60657. The cover looks like this:
Various versions have been posted to the web, but his original has not, since it is copyrighted.
Lessor published a second edition in paperback in 1975 which was reillustrated by Terry Rose:
One of Lessor's most famous quotes: "Happiness is like a butterfly. The more you chase it, the more it will elude you. But if you turn your attention to other things, it comes and softly sits on your shoulder."
Urban Dictionary definition: The warm, pleasant sensations one feels in the stomach and heart area when emotionally moved by an act of goodwill or love. For example:
Watching children open presents on Christmas morning gives me the warm fuzzies.<
Quote from: TA for Tots Chapter 2: "About Strokes: Warm Fuzzies and Cold Pricklies," pg.8-15 "A stroke is any sort of act by someone else that lets you know they are there: a smile, pat on the back, a whistle, voice, anything like that. Have you ever noticed how dogs and cats like to be petted, fed, played with, and talked to? You and I are the same way. When we were little we were touched, held, bathed, tickled, swung, talked to, and played with by mom and dad. We liked all of this because it felt good. These are things that people do to us that cause us to feel. They are called 'strokes' in TA language." In other words, pleasant strokes are "warm fuzzies."