AstroBookReview: Identifying Planetary Triggers
This is a damned good book, and is pretty clear as to what you are looking for and what is going on. It goes into progressed charts, orb of aspect, prioritizing aspects and transits to the progressed chart. It goes into detail about solar, lunar, Mercury, Venus, Mars, Jupiter, and Saturn returns, and their transits.
I do find it kind of amusing that in the planetary transits section, she reprints information written by Dr. J. Heber Smith in the 1900's or so, and even missing a planet, it's still pretty fun and current to read.
I keep putting off writing this review because going into greater detail would take me forever (it's a thick book). I'll just leave it as, I highly recommend this one for predictions. It makes sense to me!