There are some different places where you can get MENSA guides to study you can take free tests and also there are some good books you can read as well. Good luck with getting in!
Thanks for your reply! Please tell me WHAT those places are, and where I can find them! Thanks! : )
http://www.bergmandata.com/
http://www.freelinks.com/guide/test/iq.php
Those are a few sites. Ignore the ads and take the free tests listed on the sidebars.