The rules aren't clear on this. The only place where a number of spells is mentioned is in making up a grimoire, where you choose 4 spells. Some people have interpreted that to mean that you start off by knowing 4 spells. I'm giving my players 4 spells if they are in a sorcerous career, i.e. Sorceror or Witch, and allowing them to learn more for 10 Free Points each. Other, non-sorceror careers have to purchase all their spells at this price. I'd like to hear an "official" opinion on how many spells each type of career should get.