Allie Brosh will always have a special place in my heart for having written her comics about depression. They are, to this day, some of the funniest things I have ever read, and they help me feel okay about what's going on in my brain. (To find them, look up Hyperbole and a Half, which is the webcomic, with "Depression Part 1," and go from there.) 
 The book has some things from the website, and some things I had not yet read, and all of it was gold - although Brosh has an uncanny way of articulating just how self-deceptive people can be, and it's a little too accurate. So be prepared to a) wince, and b) realize you aren't the only one who does things like tell yourself how amazing and wonderful you are for your awe-inspiring humility.