"Coming Up For Air" by George Orwell
Thumbnail review: this would be an ideal book for a middle-aged man to have with him at the scene of his suicide. As for whether the book should or should not be coated with his brains and/or blood, that's a matter of taste.
I might have more to say about this book later, if I can muster it. Right now, I don't see how I'll be able to.