The knowledge of Vedic astrology (Jyotish Vidya) was traditionally passed down from master to disciple for thousands of years ensuring the purity of the teaching. Unfortunately such illustrious teachers are rare today and we have to struggle to learn from incomplete and/or incorrectly compiled manuscripts.(BPHS is a prime example of this where much of Jaimini has been inserted into the text, trapping many into believing that Jaimini and Parashara are interchangeable. Many self- proclaimed (internet) gurus have fallen into this trap and even published books extolling the erroneous practice. Quite a dilemma for the budding astrologer! See the article "Jaimini or Parashara" for more information.)Some of these treatises (translated manuscripts) are available here in our "Online Library" for the benefit of all sincere students.BPHS Chapter 1:"I shall proceed to narrate to you the science.