Ask HN: Books to get started on Angel Investment

The Definitive Guide to Raising Money from Angels, by Bill Payne. http://billpayne.com/definitiveguide.html

Yes, the site looks like godawful direct marketing spam and yes, it's written for entrepreneurs looking to raise from angels. But there's a ton of useful info in here about 'how angels work'.

EDIT: There's some weird pricing tests going on on Bill's site - try this URL for the same product, potentially cheaper: http://billpayne.com/get-angel-money