Since you have RCBS equipment, I recommend the Speer reloading manual, which has specific instructions for using RCBS equipment. If you have a favorite brand of bullets, you may also want to buy their reloading manual. Reloading is basically just following a recipe in cookbook form. There's not much to it. It is important to check your load data against two different manuals to make sure that they are similar. This is a safety check against typos. I personally like to use the Speer manual and the Loadbooks USA books for specific calibers. Loadbooks each have load data for only one cartridge, and the data is copied from the manuals of all the major bullet and powder manufacturers. I also use the Nosler manual because I have been using Nosler bullets lately.