
A Wargamer's Guide to 1066 and the Norman Conquest
and
A Wargamer's Guide to the Anglo-Zulu War
These are the first two titles in a new series by Pen & Sword. I have two more titles publishing later this year, and I believe others are on the way.

I'd say they're really useful for newcomers to the periods, but I'd also hope that they contain a few useful little snippets for veterans too. Why not buy them and see if you agree :-)