I've been doing Atkins for years. The original, Atkins for Life, is really good. It explains to you the chemistry & why the diet works so well. Also almost the entire second half of the book is recipes, which helps.
A typical day for me is a couple hardboiled eggs in the morning, a giant salad for lunch w/some kind of protein (usually leftovers from the night before), & some kind of broiled/roasted meat & steamed veggies for dinner. Tuna & chicken play a huge role in my life LOL. Snacks can be peanut butter, or some kind of low carb veggie (celery, carrots, etc) w/a cream cheese, salad dressing, guacamole etc. dip. Watch the salad dressings though--a lot of them have sugar.
Don't listen to the nay sayers who say it's not healthy. It's not healthy if you're eating 3 servings of bacon a day. But if you stick w/salads, veggies & white meat/fish it's very healthy & very effective. When I first went on the diet I lost almost 15 lbs the first month.
Oh & there's a very delicious thin sliced turkey bacon made by Butterball that you can eat 3 times a day. Cooks nice & crispy & tastes almost like the real thing.