I just picked up 2 new collecting books, entitles Ancient Coin Collecting II and III, by Wayne G. Sayles. Volume II deals with Ancient Greek coins from the Archaic, Classical and Hellenistic periods. Biographical data, as well as beautiful example photographs.
Volume III, the Roman World with a vast amount of information and pictures of some beautiful coins, along with a history of each emperor and their significant others.
Each book cost me $30.00 each, and were welll worth the price tag.
I highly recommend them for anyone with an ancient passion.