I have been on a jag of Greco/Roman era history. Just got a new one on the Punic Wars. While I have read a number of books focus on Hannibal, Cato the Elder, Scipio these are meant to take in the whole scope.
There is a lot of recent stuff that is very good — Anthony Everett is coming out with an overview of Greek history in December.
I would love to know your reading list! Do you have any favorites you can recommend?