HATHA YOGA
HATHA YOGA is all Yoga that has postures or asana ......

IYENGAR YOGA, VINYASA YOGA, ASHTANGA YOGA, BIKRIM, SATYANANDA, etc are all HATHA YOGA.....

IYENGAR YOGA
Even though Iyengar Yoga is actually a branch of or a modern day version of the ancient Hatha Yoga...it too has developed it's own trade mark.....Iyengar Yoga is more dynamic and considered more YANG or STRONG.

VINYASA YOGA
VINYASAN YOGA is simply any number of postures strung together to make a flow or dance........
Given my history of dance I enjoy creating my own VINYASA....or YOGA DANCE.....

ASHTANGA YOGA aka the 8 LIMBS
Ashtanga Yoga should probably not be called a style of Yoga, as it is actually an integral part of the philosophy of Hatha Yoga...Ashtanga is the 8 Limbs of Yoga..or the 8 stages of hatha yoga. All of my yoga classes are Ashtanga yoga..

THE EIGHT LIMBS are....

YAMA
NIYAMA
ASANA
PRANAYAMA
PRATYAHARA
DHARANA
DHYANA
SAMADHI

For more on the EIGHT LIMBS OF YOGA click on 'EIGHT LIMBS', top right hand corner of this page...