Dr. Atkins' New Diet Revolution
by Dr. Robert C. Atkins
Dr. Atkins's plan begins with a two-week induction phase, limiting carbohydrates to 20 grams per day. This induces ketosis, a metabolic state that consumes excess body fat. You slowly increase your carbs until you find your own body's tolerance level for carbohydrates (5 grams per week for the second phase, Ongoing Weight-Loss; 10 grams per week for the third phase, Pre-maintenance). When you get to the Maintenance, the final phase, you will typically eat 40-100 grams of carbs a day.

The Carbohydrate Addict's Diet
by Dr. Rachael F. Heller and Dr. Richard F. Heller
In this plan, you eat 2 meals a day that are very low carb (under 4 grams). Then, you have a reward meal that must start and stop within 60 minutes (to control insulin levels). In older editions, the reward meal could be anything (but ideally well balanced for good nutrition). In their newest book, the reward meal begins with 2 cups of salad, and the meal itself is equal parts each of protein, carbs, and low carb vegetables. This plan does not put your body into ketosis. The Hellers do not recommend ketosis for healthy weight-loss.

The Protein Power Lifeplan
by Dr. Michael R. Eades and Dr. Mary Dan Eades
The Protein Power plan controls insulin levels and induces ketosis through carbohydrate reduction. You determine your lean body mass, then calculate your body's protein needs (0.6 grams of protein per pound of lean body mass if moderately active). Carbohydrates are limited to 30-50 grams daily, divided throughout the day.

The Secret to Low Carb Success
by Laura Richard
Author Laura Richard is a registered nurse who had struggled for years to find her own solutions to constant dieting. In this well-researched and informative book, she discusses all the major programs available, guiding you through the benefits of each, and showing you exactly how to create a low carbohydrate lifestyle that works for you.