Quote Originally Posted by Lyonheart View Post
ahh ok.. the books only drop off bosses?
They're looted from "a dusty tome" that can be found in several locations in the DM dungeons.

https://classic.wowhead.com/object=179547/a-dusty-tome

The priest trinket is amazing for MC. Healing power, MP5 and 10 fire resist. The warlock one is nice. The mage one sucks