You don't need a cookbook to eat healthy. What you need is to know the glycemic index of the foods you are eating, and to concentrate on foods that have a glycemic index of less than 65. Think in terms of low calorie-density foods. The more pre-digested it is, the worse it is for you. In other words, white bread, fast food, packaged meals, etc. are all poor quality foods. Make your digestive system work for your calories. Eat lots of fresh vegetables, raw if you can. Eat salads with lots of various ingredients and only a little oil and vinegar (or lemon juice) type dressing. Add some protein to the salad like a small piece of chicken, fish, etc. Eat nuts as often as you like. Avoid eating in front of the TV popular snack foods like doritos, cheese nips, etc. If you want to eat carbs, make sure they are complex carbs not simple sugar and pre-digested carbs that come in a box or bag.
HIgh glycemic index foods such as carrots and potatoes are ok in small/medium doses as long as you include a fat ingredient to slow the digestion of them. A Snickers bar actually has a much lower glycemic index than most popular high carb snacks. Lettuce, broccoli, cauliflower, cabbage, celery, cucumber, etc, are all good and can be eaten in mass quantities - mixed with cheese, nuts, and other protein/fat in moderation.
Oh, and find an aerobic type exercise that you can do often without injuring yourself. Running on a treadmill while watching in-car race videos is what I'm doing two to three times a week for a half hour.