If you are getting interested in yoga you may start to feel like you dont know where to begin. There are world renowned resources in the UK, available to study online. I thoroughly recommend any course taught by Dr Nick Sutton at the Oxford school of Hindu Studies.
I recommend the following edition of The Yoga Sutras, compiled by Edwin F Bryant; “Yoga Sutras of Patañjali: A New Edition, Translation, and Commentary”, 2009.
If you are beginning to read about yoga philosophy, Hinduism, Jainism, Buddhism, and Indian history then you might be getting somewhere, if you are getting confused or need a recommendation, or want to ask a question regarding philosophy message me here, if I can’t help directly I can point you in the right direction/resource area.