Posted By:
Scott MosleyLew says it best for himself on his "me" page on eBay... It was planned to be 6 volumes.
http://members.ebay.com/ws/eBayISAPI.dll?ViewUserPage&userid=theoldjudge
I wouldn't hold my breath waiting for volume four but, as others have echoed, we should be very grateful for the three that he was able to complete.
Scott