Wonderful. I'm not terribly fond of the theme 'be content with who you are' as it's usually shared - the lesson to easily devolves to 'don't try to improve your lot; don't have adventures; let those who are better or stronger or smarter than you do whatever they want to you.' But Jack Kent is a good author. He avoids that implication; Sam the dragon does have adventures and does learn more about exactly what he wants.

And of course the very first page is perfect. There was once a dragon named Sam, who was very fond of bedtime stories. He liked them so much that he went to bed 87 times a day, so it was almost always time for another story."" ( )

Sam the dragon wants to be a man. He hopes he is a prince turned into a dragon by a spell, but being essentially honest, he has to admit to himself that isn't likely.
One day he sees an body building ad in a magazine promising, "Be the man you want to be!" He places his order and sets out to choose which man he wants to be.
He selects Mr. Johnson, the portly middle aged gent who feeds the pigeons at the park.
the body building exercises work, and he becomes a duplicate Mr. Johnson- except he can still breathe fire.
Sam works for the circus for a while, until, because he has forgotten to do his body building exercises, he turns back into a dragon, and decides being himself is okay, too.
Funny, quirky, and amusing, my Boy laughs out loud over this one, saying it's one of his favorites. The moral sounds heavy handed, but the fun is in the story on the way.