"I want to start reloading."
Ok, The local library, check out 1 book on re-loading and read it cover to cover, a really good one is the "ABC's of Reloading" by Bill Chevalier, (it might sound like a lame title but the info covers a wide range from novice to pro), then find another and read that one cover to cover.
You should focus on the basic principles and saftey protochol that the reloader needs to know. On the top of this forum is are stikies that have basic componant info. If you jump into 308 specific literature, you'll be overwhelmed with data you may not understand.
Load info for a specific cartridge (like 308) is found all over the place, Bullet makers manuals, Powder makers recomendations, alot can be found on line. The 308 is a great all around cartridge, a hunter, a long range gun, a benchrest gun, you can do alot of stuff with that gun.
The Lyman manual is alright, I got it because of many recomendations, but it is my least looked at book.!!