Short, But Sweet

I've read lot of books ranging from Any Rand to P.G.Wodehouse. But there are very few books which are very Short But Sweet:

Here is my list:
* Anthem by Ayn Rand
* Jonathan Livingston Seagull by Richard Bach
* Eaters of the Dead (Michael Crichton)
* Who Moved My Cheese
* Fish Tales
* Alchemist (I love this)