Depends on what kind of level you want.
Intellectual: In Cold Blood by truman Capote about a Kansas murder, and it's from the perspective of the killers themselves. It's clever, it made triggered quite an emotional response in me when the two murderers are caught and excecuted as cleverly Capote turns you around to understand them as people, not as killers.
(Don't worry I didn't give away the story it's based on a rue story so you know they murder thwem and get excecuted before you read it).
Easy/fun: It's A Long Way Down by Nick Hornby. He wrote the book About A Boy that was tuned into afilm with Hugh Grant.
It's a pretty humerous book about 4 suicidal individuals (yes I know pretty depressing by the osunds of it) but it's not at all.
Hope that helped.
Peace.