Will I know a lot of the postures?

YES!  Fact is, that the Bikram series is simply made up of HATHA YOGA postures that have been placed in a sequence.  The sequence may change but, the postures are the postures and can only change so much.  New twist, new turn and much of the same.  You will find the changes very refreshing and invigorating for you Mind, Body, and Soul

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