Welcome to the wonderful, oft confusing and frustrating world of reloading.
Martys is right about a text, The ABCs of Reloading. Also a Lyman's 50th Editon Reloading handbook has an excellent "How To" section. After reading these you will have an idea about how and why of each reloading step and the equipment you'll need for your reloading needs. It'll be difficult for a new reloader to sift through the "facts" and suggestions and determine which are real or which are old wive's tales, so check in your text about hints/recommendations. You'll get some suggestions for tools and stuff that aren't needed to get started, so you'll have to decide for yourself. (I started with a Lee Loader, a mallet, a 4"x24" log, one pound of Bullseye, one hundred CCI primers and 100 generic lead bullets. I reloaded 38 Specials for a bit over a year like this. Unfortunately, I wasn't acquainted with reloading manuals for the first 6 months or so and I just used the instruction/data sheet from my Lee Loader).
You are gonna get a ton of "buy this, buy that, or you can't reload without this..." posts, but for a new reloader I say K.I.S.S. Nuttin' wrong with starting on a single stage press, the manufacturer doesn't matter that much though many will argue that their choice is the only equipment to use.. I have been reloading for a bunch of years and in all that time i have only found one manufacturer to produce bad equipment (and nope, it ain't Lee). 99.9% is personal preference.
One hint I alway give new reloaders; pay very little (no) attention to load data from any forum expert, range rat, gun counter clerk, pet loads website, or gun shop guru. Get all your data (powder charges, primers to use, and finished ammo dimensions) from published reloading manuals. While most "helpers" are just trying to be helpful, it's your ammo, your guns, your body that may be in jeopardy from a wild load. I have used this for over 30 years and have only had one instance of a squib, and there are many, many combinations of components and loads that will keep you busy for years...
Go slow, double check everything and most important, have fun...