Bikram
About 30 years ago, Bikram Choudhury developed this school of yoga where classes are held in artificially heated rooms. In a Bikram class, you will sweat like never before as you work your way through a series of 26 poses. Like Ashtanga, a Bikram class always follows the same sequence, although a Bikram sequence is different from an ashtanga sequence. Bikram is somewhat controversial, as Choudhury trademarked his sequence and has sued studios who call themselves Bikram, but don't teach the poses exactly the way he says they should. It’s also wildly popular, making it one of the easiest classes to find.