A few reloading manuals , at least 4 , because there are so many different powders, primers and bullet no one book has it all .
Read the first few chapters of each... the instructions ... again , so much info that no single book has it all. Speer , Hornady , Lyman #50 , Western Powders , Lyman Cast Bullet Handbook #4...all are good and you will use them.

It's rare to buy everything you need at a yard sale for $10.00 in an old cardboard box...one thing is you don't know what you need .
Buy a starter Kit like the Lee 50th Anniversary Challenger Press Kit, they sell for right at $140 - $150 and contain a single stage O press and just about everything you need . You can always upgrade later and you will always have a need for a single stage press .

That and asking questions from us old guys who have been doing this for 50 or so years (experience is a heck of a teacher) will get you going and keep you on track .
Gary

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