Now, I know it’s always good to have the core rulebooks, especially the PHB. However, there are countless other supplements that add to the players’ knowledge and make playing the game more fun. What I want to know is which ones are essential to the game. I’m starting to look for new books to increase my collection, as are plenty of other D&D players. This is especially aimed at Dom, seeing as he has so many. Just post below which books you think are most needed, or just cool to have, when playing D&D.