Used a tome to improve the main character's attributes, talents, spells, or skills
At random spots in the game, you'll find these tomes that can improve your character. They will be in the "Usable Items" section of your inventory. Press then to get to your inventory. Push to get your Usable Items list. The tomes will be at the bottom beneath all of your potions. Highlight and press to use it, then to leave the menu.