While Prasanna ji was very kind in her post which I am responding to, where she pointed towards a few recent articles the following is what I would sincerely recommend to beginners with the oft-repeated CAVEAT. None or even all of these will not make you an accomplished jyotishi or predictor and more hard work and constant practice will be involved!
The farther away you move from the original words that form the basis of jyotish, the more you would risk becoming influenced with interpretations and understanding of whoever tried to interpret things for you (all translations suffer that glitch and scotomata).
There is hope, if you are sincere and not easily stressed out or get upset
Read the following books:
Brihat Parashara Hora Sastra
Phaldeepika
Uttarkalamrita
Muhurta Chintamani
Laghu/Madhya Parashari
Chandra kala Nadi (Devakeralam)
Bhavratnakara
Brihat jataja (and samhita if you are brave and into things mundane)
And as you absorb these, do not get into the mindset that you are sitting at the feet of Gangotri and all shall be revealed unto you!
Try to see what you read and learn in charts and lives that you must collect and acquire (internet helps). This part must be done critically and rationally and wisely.
Do read but not religiously what modern book and article writers write for free or profit giving ten line excerpts of lives and horoscopes that take a LIFETIME to unfold!
Like medical education, astrology can at times get too clinical and capsulated and morbid! Despite all the pressures no doctor should ever ignore that while lives can be summarized in a page or two they can only be lived over a lifetime. A similar consideration must ALWAYS be given to the nativities who under the guise of seeking help from us, are really sent to us so that we could LEARN!
It is very similar to being a parent! Who teaches whom? The child or the parent? Depends on who is really paying attention and as Rhutobello the wise grandpa rightly asked, "whose shield is down?"
Kaun seekhaygaa jyotish?