Answer 1: Take a college course. Answer 2: You can learn by the 'Dowling' method, which can be found here - For this method, you need the Wheelock's Latin textbook and the Lingua Latina: Familia Romana first book. Wheelock's should run you about $1.00 (Don't bother with a nice one, you will only be using a few pages of it.), and the Lingua Latina can be found for under $15.00 at amazon.com, and $15.00 or more elsewhere.