The 2nd edition lee book goes in the steps to reload, as well as the 49 th lyman book,
Lee gives formula for reduced charges, and is geared towards their equipment. But understanding the process is important.

The abc's of reloading goes in the steps as well but does not include any load data.
I put it off for over 20 years..

Dsh has nice equipment, rcbs and dillon from what I have seen..
Your expected volume of production, and the type of ammo you load has a influence on the press you get, whether single stage, turret, or progressive.