Anyone know of any good cookbooks for people with diabetes?

My dad has diabetes and high blood pressure and we really have to change his diet, he is having surgery on Monday due to his diabetes issue and we really have to step up the change in the kitchen. Anyone with ideas thanks!!!

What are some cookbooks for children with type one diabetes?

My 3-year-old cousin was just diagnosed with type one diabetes. What are some names of cookbooks that I can buy at Barnes and Noble for children with type 1 diabetes? Thanks in advance:)