Greek and Roman Artillery 399 BC-AD 363 (New Vanguard) (ISBN 1841766348)

A good little resource for the siege engine builder.:
I build models of seige engines as a hobby, and this book is a valuable addition to my library. It specifically deals with the ballista, a crossbow-like weapon, and does so in good detail. The drawings are detailed and carefully done, and the photos and descriptions are more than adequate for a talented reconstructor to make scale models from tabletop sized to full sized. It is well worth adding to your library if you have an interest in Greek and Roman warfare and engineering.

Nice study:
If you are interested on the mechanics or how to build one of these artillery pieces this book is for you. Its quite well explained. It also has some nice pictures. If you want to know like I did, how they were used or how effective they were, you will find very little unfortunately here.