ABCs of Reloading is where to start off. Get the whole front-end of the book into your head to start. Follow that up with Lyman's book because they go a bit further down the road than ABCs does. From there go grab Hornady and Sierra manuals as both make phenomenal bullets and I don't hear (or have) complaints about either. If Nosler or Barnes interest you, eyeball their manuals before you buy 'em to make sure your caliber/load is in it. Barnes Bullets last manual wasn't all that impressive on data to me, and I don't make enough money to shoot Barnes or Nosler regularly.
Try getting older manuals and old shooting magazines, too. In more than one old magazine issue I have, the authors of the reloading articles state they cross-reference a lot. In every case, they've said "book A had this load, but not book B or book C, while book D said the max charge was 9 grains less." When you start getting your loads towards the warm side, you need more than one reference. Oh, and take any loads listed on the internet with five pounds of salt. I've seen .45 Colt loads listed that would blow up any revolver, and one .243 load that would never get the bullet past the muzzle. Should you see one that interests you, cross-check it against every source you can find. An hour spent checking and rechecking is a hell of a lot better than a stuck bullet or a bulged barrel.