Lee 2nd Edition and 1 other. Plus ABC's of Reloading.
I have Speer, Lyman, Nosler, Hornady reloading manuals as well but they all cater to their specific bullets. Lee, on the other hand, has more "general" recipes catering to many bullets.
If you shoot only Hornady bullets then the Hornady would suit you well, if you shoot strictly Sierra then the Sierra manual should be your choice, but if you shoot many bullets then I personally would make sure I had a copy of the Lee manual and another just to cross reference against same bullet weights/lengths.
I find the Lee manual to have more powder choices/caliber as well.