Not a book suggestion but here are links to two articles - One Roman and one Greek coins.
Numismatics with Kenny
The initial suggestions here, including the work by Sear, are certainly valuable. I would add Harold Mattingly's Roman Coins, initially published in 1928 (my copy was reprinted in 1967).
A wonderful online RIC resource: Online Coins of the Roman Empire. Has a great ID engine.
Main page: https://numismatics.org/ocre/
ID engine: https://numismatics.org/ocre/identify