Steve Martin is a brilliant humorist, and it's interesting to see him take on the challenge of delivering his brand of comedy within the limitations of the tweet format. Most of his tweets had me literally laughing out loud, and a few of the responses from his followers that are included are quite funny as well (though some of them aren't).
Here's a sample taken more or less at random:
"The Red Cross is a really good cause, but one billiard ball hitting another is a really good cause and effect."
"REPORT FROM JURY DUTY: Other jurors are stupid. They don't believe in 'hexes.' Plus, they want me to put my magazines away."
"Today is National Marijuana Day. A day when...uh...wow, Wolf Blitzer is SO funny."
My only complaint is, for the price, it would be nice if the book had a bit more content. It's small and thin, somewhere in between one of those little gift books and a regular trade paperback and only a hundred pages with maybe about two or three tweets per page. So the list price is perhaps a bit steep for what's basically a glorified gift book, even if it is by Steve Martin. But if you're a Steve Martin fan like I am, it's worth it, especially if you can pick it up on sale like I did here. :)