Quick question on jobs...

[Xaeyr]

Ok, so I'm a new player and think I understand about choosing a job based on my base class. My question is, can I pick a job based on a second (or third, or fourth) class that I level up or am I limited on jobs to only ones that my base class can be?

[Niwashi]

Each job has two class requirements: one class that needs to be level 30 or higher and another that needs to be 15 or higher. So long as you meet those requirements for each job you want to unlock, you can do so. You can advance all classes and all jobs.

[Urthdigger]

There is no "main class" the class you pick at the start literally only determines where you start.

[Niwashi]

Oh, and since it tends to be the next question after this comes up:

To unlock an additional class, go to the Guildhall for the class you want to add and take a quest from the Receptionist there. This will unlock the class and provide a starter weapon or tool for the class. Your current class is determined by what main-hand weapon or tool you equip (and you have to unlock a class before you're entitled to equip that weapon/tool type). Levels are class-specific, so for instance, if you're a level 20 Thaumaturge and you unlock the Conjurer class, then when you first equip a Conjurer's wand, you'll be a level 1 CNJ.

Thaumaturge, Gladiator, Pugilist, Weaver, Goldsmith, Alchemist, and Miner guilds are in Ul'dah.
Conjurer, Archer, Lancer, Carpenter, Leatherworker, and Botanist guilds are in Gridania.
Arcanist, Marauder, Cook, Blacksmith, Armorer, and Fisherman guilds are in Limsa Lominsa.

[Xaeyr]

Awesome, that's the way I was hoping it worked. Thanks all. Really enjoying this game so far