Reading Recommendations?

Just looking for some book suggestions on alcohol/ alcoholism.  I'm struggling to figure out what I'm going through and since I read up on everything else, I'd like to read about this too.  I went to the library but wasn't sure what to get... so I'm turning to you.

Could you please suggest some books for me?  I'm looking for information on what alcohol does to you (the hard truth so I can no longer deny that there's no harm) and also maybe some biographies of people who have gone through this... but I'm not looking for ones on hardcore drug addicts/ alcoholics... I'm more looking at people who drink like me... like obviously way too much but are still able to function etc etc.....

Any suggestions are welcome - thanks.
Rosie