"Scatterbrain" is a collection; there are a couple short stories and excerpts from Niven's novels, but mostly it's full of random pieces. There are essays, recollections, email exchanges, lists of rules. To anyone who isn't a Niven fan, it's basically gibberish, but it was fun for me to read. I especially found interesting his comments on collaboration, since I have never been as much a fan of his collaborative works as of his solo writing. It's a cool little book for Niven fans, though I wouldn't recommend it for anyone else.