2 collectibles match your filters.
Magic Manuals
Magic manuals unlock new Witchcraft spells or upgrades. You cannot learn most hexes without the matching manual, so pick up every one you find.
Swordmastery Manuals
Swordmastery manuals unlock new sword techniques and abilities. You need the right manual before a Swordmastery skill can be bought, so loot soldiers, bandits and camp chests.