The Pocket Guide to Cocktails. This was my favorite of the two we made (the other one had creme in it, and it curdled!)
The fun thing about cocktails is that you can substitute the alcohols for soda water or sparkling juice, and give non-drinkers and kids a similar sense of a special occasion, without child services taking away your children!
I also love cocktails for the billions of possibilities. They definitly allow you to choose something fun and different for every occasion-- whether you're looking for a specific flavor or color or alcohol content.
Very fun-- as usual!