There are different providers that you can choose to take classes from. The best part about theory is that it is not really necessary to attend in person to learn everything. You can opt for online classes that you can pay for, or even some free ones. The practical part is an entire other business. This part of the composite course is one that you need to attend to because even if there is also an online version, being there in person makes things clearer. Of course, this depends on every student and how they see things.