Crochet shell edge on a garter stitch cardigan

Hi, Please help me to find instructions about how to crochet a shell edge.

I have limited knowledge about crochet. I am planning to knit a garter stitch sweater for my girl and use shell edge on the collar, the botton and side edge of the sweater.

Thanks!

crochetcabana.com has some good tut info. If you haven’t already, you should post this query in the Crochet Forum for additional suggestions.

cam