Knowledge is one of the social stats that players can increase in Persona 5: The Phantom X, here are the activities that level it up.

In WoW TWW, Profession Knowledge is essential to guarantee high-level crafts and to find rarer (or more) materials.

These are arguably the fastest ways to increase Profession Knowledge in WoW The War Within, as each of these Profession Treasure locations yield +3 Profession Knowledge.