Some people are visual learners. For you it's easier to learn how to loom knit by watching a demonstration. We recommend the DVD below for a really great way to learn knitting loom basics.
In the meantime, watch some online videos of knitting loom instructions from YouTube.
http://www.youtube.com/watch?v=M9AKvMcvl50 Easy to follow instructions. Learn in less then 9min.
How to video sweater for beginner?
Our friends at Bee Happy Designs have some great loom knitting instructional videos you will love.