Thank you all for your suggestions. I will be checking out all the links given. I watched the videos for two colors. Boy! I wish I was coordinated enough to hold my yarn the way she does! It's the reason I don't crochet, I can't seem to be able to hold the yarn. While kniting it doesn't seem to matter how I hold the yarn. However I am very slow, because of my lack of hold.
Are you talking about double knitting where you knit both side and the design is reversed in color? Like if you want a dish cloth with a heart in the center and you wanted the colors to be red and blue. On one side the heart would be red and on the other side the heart would be blue and the background colors would be reversed also.