What literature can you recommend to help implement a realistic lifestyle change for someone with Type 2 Diabetes?

I’ve am overwhelmed by all the different perspectives regarding how to manage Type 2 Diabetes. My mom was diagnosed with the disease 3 years ago, but has yet to make any significant efforts to improve her condition or combat the bombardment of drugs being prescribed by her doctors. My mother is only in her 40s. She’s a fairly picky eater who doesn’t like to cook complicated dishes. I’m looking for a book or maybe two that can be a catalyst for getting my mom’s life and health on track. My mom needs help (from a trusted and fairly simplistic source) finding a plan that can be sustained for a lifetime and perhaps in time even help her to cut back on her diabetes medication. Thanks for your help.