"Light On Yoga" which edition?

A million years ago I got an *ancient* edition of "Light On Yoga" by BKS Iyengar. It was great. It was huge and covered EVERY THING, in detail.
A friend of mine is really getting into yoga and I would like to recommend the book to her, but a few years ago I noticed that there is a truncated version of the book out that is not nearly as nice.
Does anyone know which edition of the book to avoid or seek out?
Thanks in advance either way.
A friend of mine is really getting into yoga and I would like to recommend the book to her, but a few years ago I noticed that there is a truncated version of the book out that is not nearly as nice.
Does anyone know which edition of the book to avoid or seek out?
Thanks in advance either way.