angel books

Im currently watching the Buffy tv show and know there are comics, but I'm really more of a book person. I've seen that there are quite a few books and comics about angel, buffy etc... but I have only really seen people talk about the comics. Are the books worth reading or not? also if they are...

Seen as it is looking very unlikely that the entire collection of Buffy & Angel books will ever be released on ebook format is there anywhere that I can look to find these or do any of you guys have them in ebook format? I know Amazon has a few but not many.