Reddit mentions of The Yoga Sutras of Patanjali

http://www.amazon.com/Yoga-Sutras-Patanjali-Swami-Satchidananda/dp/1938477073


This is the one I have and referred to in teacher training. I like it.

The Yoga Sutras of Patanjali

Pandit Rajmani Tigunait's is my fav. It's rare in that it's both very deep in traditional philosophy but also very clear in meaning.

He's only done the first 2 pada so far, but each one is several hundred pages. The other 2 will come out in time

https://shop.himalayaninstitute.org/collections/pandit-rajmani-tigunait/products/the-secret-of-the-yoga-sutra-samadhi-pada

https://shop.himalayaninstitute.org/collections/pandit-rajmani-tigunait/products/practice-of-the-yoga-sutra

You can find it on Amazon too

For brief and pretty good you can check out Swami Satchidananda's version. It's pretty popular

The Yoga Sutras of Patanjali https://www.amazon.com/dp/1938477073/ref=cm_sw_r_cp_apa_i_sOguDbAQ2QJR3

for me there's never been only one that stood out, but here's a few of the best:

by far one of the easiest to understand and best interpretations of the classic 7000 year old yoga text of Patanjali:

[The Yoga Sutras of Patanjali by Swami Satchidananda] (http://www.amazon.com/Yoga-Sutras-Patanjali-Swami-Satchidananda/dp/1938477073/ref=sr_1_1?ie=UTF8&qid=1407625341&sr=8-1&keywords=patanjali+yoga+sutras)


The father of modern yoga and the Guruji of B.K.S. Iyengar and Patabi Jois:

Krishnamacharya: His Life and Teachings

Also a must read:




The Hatha Yoga Pradipika

Do you mean the 8 Sutras of Patanjali? http://www.expressionsofspirit.com/yoga/eight-limbs.htm
If this is what you were thinking of I highly recommend the following book: http://amzn.com/1938477073