I never knew there are a lot of different styles of Yoga. I always wanted to try Yoga so when I saw that there are Yoga classes at FF, I have to try those. From the list of GX offered in FF (Burjuman Center) I saw Hatha, Power and Flow Yoga classes.
From my research, there are actually more styles of Yoga than those three. Then each style has different methods. Source
About.com Yoga
Traditional Styles
These styles of yoga all originated in India. Though now popular worldwide, each of these styles follows a method developed by an Indian guru.
Ashtanga
Integral
Iyengar
Kripalu
Kundalini
Sivananda
Viniyoga
Contemporary Styles
These yoga styles all originated in the United States, although they are all based on traditional methods.
Anusara
Forrest
Hot Yoga/Bikram
Jivamukti
Moksha Yoga
Power Yoga
Restorative Yoga
Yin Yoga
Yoga Nidra
Vinyasa/Flow
These styles all use a flowing style of practice, in which you move from one pose to another in sequence while focusing on the breath.
Vinyasa/Flow
Anusara
Ashtanga
Forrest
Jivamukti
Power Yoga
Alignment Oriented
These styles devote special attention to the precise way the body should be positioned in each yoga pose in order to obtain the maximum benefit from the pose and avoid injury.
Anusara
Iyengar
Viniyoga
Power Yoga
Fast-paced, sweaty yoga styles. These will get your heart pumping and are the most effective yoga styles for weight loss.
Power Yoga
Ashtanga
Prenatal and Family Yoga
Learn how to safely practice yoga during pregnancy and how to introduce yoga to your family.
Introduction to Prenatal Yoga
Postpartum Yoga
Mom and Baby Yoga
Kids Yoga
Yoga Advice for Men
Yoga for Seniors
Yoga for the Whole Family
Adaptive Styles
These styles adapt yoga to fit the needs of specialized populations.
Viniyoga
Chair Yoga
Yoga for Seniors
Plus-Size Yoga
Christian Yoga
Laughter Yoga
Nude Yoga
Yoga Off The Mat
The newest trends in yoga take you off the mat for aerial and aquatic adventures.
AcroYoga
Stand-Up Paddle Yoga
AntiGravity Yoga
I guess I don't need to know all of these, for now I'll concentrate on Hatha, Power and Flow Yoga which I have access to.