I have wanted to try different knitting stitches, but often when I find an interesting pattern, it is for something I don't want to make. Mostly, I make scarves.
I was pleased to find this book, Super Stitches Knitting by Karen Hemingway. It shows dozens and dozens of different stitches -- more than I knew existed. It does it in an easy way, with pictures on one page and instructions on the other. It also gives just the pattern for the stitch in small increments, so you can apply it to whatever you want to make. I love it!