Studios can range from professional commercial studios all the way to small home-based studios. 

Commercial studios often have many different rooms, each with its own purpose - the main two being the control room and the live room. They'll often employ a few different people who specialize in their own roles - a few examples are the recording engineer, the producer, and the mixing engineer. The acoustic design of the rooms is also very important.

Home studios are usually a lot smaller, as they're often found in residential houses where space can be limited. But home studios are free of the time and money pressures that can come with a commercial music recording studio - this is why they're perfect for those who want to create and produce their own music.