Narayana Dasa by Sanjay Rath This book is the first ever on Narayana dasa. Suitable for those with an understanding of Vedic astrology. Crux of Vedic Astrology (Timing of Events) by Sanjay Rath Different dasa systems and their uses are defined and their calculations are explained. Suitable for the more capable Vedic astrologer. Brihat Parasara Hora Sastra (Vol. 1, 650 pages) by G.C. Sharma Compendium of Vedic astrology translated from Hindu by Girish Chand Sharma, part of a 2 volume set. Originally written by Maharishi Parasara.