Kinross07

Apologies if this has been addressed elsewhere, but I tried using the "Search in topic" and couldn't find anything. I've started a new world and have found a couple of the XP books, but I can't for the life of me work out how to use them (I've tried every interactable key I can think of and looked in the O menu in case there's something there). I admit I'm still relatively new to the game, but if anyone can help it would be greatly appreciated to free up these inventory slots Edit literally 20 seconds later - Accidentally ate a book and now I feel very dumb, despite the exp it granted.