Another reviewer said this wasn't a rant. Well, I'm afraid it is. But it's a very funny one. And Hitchens has some evidence behind his sharpened rhetorical knives. He points out the hypocrisy of many of Mother Theresa's actions, the poor care her hospitals give, when compared to other organizations, and the shady people she's chosen to be associated with.
Sure, she's dead; sure, she spent a lot of time with sick people; but that doesn't automatically make her a saint, as Hitchen's makes clear.
Still, this is a polemic not a biographical study (which is why I only gave it 4 stars). If you want an in depth history of Mother Theresa, this is not the first place to look.