Are glycemic index diet and diabetic diet the same?

I was wondering since the glycemic index diet controls the sugar in your body, would diabetic cooking be the same? The reason why I ask, is because it is not as easy to get g.i diet cookbooks, but diabetic cookbooks are really easy to get and I also have a few diabetic cookbooks already and wanted to know if they are the same, because I was thinking that they are similar diets.