I am leafing over B.K.S. Iyengar "Yoga. The Path to Holistic Health" during my meals. In my opinion this is the best and the most reasonable Yoga compendium ever written.
The design of the Book is visually dazzling. Moreover, The Ishta-Devas of B.K.S. Iyengar (Shreemati MahaLakshmi-Devi and Bhagavan Shree VenkatEshwara) are mentioned:
I can't upload the Book in my blog due to copyright (the policy of my blog is to upload old Books with no copyright troubles), but the Book is definitely worth of being in any Vaishnava-Library, especially if you are fond of Hatha-Yoga.