Book: "The Science of Drinking: How Alcohol Affects Your Body and Mind," by Amitava Dasgupta (2011).
Recently there have been a number of reports on studies of alcohol and its health effects. It was very hard for me to keep up with these reports as many of them were ultra specific (throat cancer increased in people who drank alcohol and scalding liquids, like tea) or contradictory.
I suspected alcohol had some positive health effects and negative health effects, so I went looking for something more complete and thoroughly researched than a CNN article and found this book. Please be careful with this book: it is very technical and boring and I have not had to power through a book like this in a while. It did, however, address most of my questions about the health effects of alcohol. And I read the whole thing.