I bought this game quite a while ago and just started playing it. I love it so far. Most things I can find out by exploring and talking; but, how do you change classes? I read that you could change classes at will. How do you do that? Be specific please. Thanks.

OK, there are spoilers ahead. You have been warned.

To become a mage you need to get a mage to train your. I used sebastion in Lower Clarks Ward, but apparently the woman in the hut in Ragpickers Square can train you earlier. Ratbone (possibly), also in Ragpickers, can trian you as a thief. Several fighters throughout the game can train you as a fighter. To change to a class you talk to one of the trainers. The fighter trainers can also give you weapon proficienies depending on your level.

Once youve been trained in a class you can switch back to it by talking to an appropriate NPC. For a theif, Annah, and for a mage dakkon. For a fighter, dakkon or vhailor. You cannot be a priest, but the one you get is good enough anyway.

You only gain in one class at a time (no dual or multi classing for you) and your other classes have no effect at all. So a level 20 fighter/level 5 mage does not gain *any* advantage from his fighter levels, apart from HP.

Needless to say, try to have both Annah and Dakkon in your party, since the two of them will allow you to switch between all 3 classes. Try not to switch between classes too often, as there are benefits to sticking with one class (Fell's Tatoos for example). I recommend being a mage, its the most rewarding class to play in PST.