New addtions to my gaming library

I went to the local game shop (I hadn't been in since last year) to look at the used gamebooks, and got some useful books. My haul consisted of an orange spine 1st edition Dungeon Master's Guide and a Ready Ref Sheets vol. 1.

The DMG's a little beat up (and bears the name of two previous owners on the inside front cover), but when I flipped through the Ready Ref Sheets, I found a map of Arkham tucked inside that was in really good shape!

It'll take me awhile to go through these books, but it should be interesting.