Right from the authority Options Overview by The Options Clearing Corporation.
Can be very confusing when many information are presented to you since you don't know what to read. The only thing you need to know at this point is how to sell covered calls
Once you understand the hows, risks and rewards, then open an option account with your brokerage firm, most of them allow online applications... you have to answer tons of questions
The first book you want to read is Options as a Strategic Investment by Lawrence G. McMillan, after you are comfortable with selling covered calls (and shorting puts if your brokerage firm allow it).