Many people follow a strict vegetarian diet for various reasons. If you aren't ready to completely knock out all meats in your diet, you can still find a lot of vegetarian recipes to keep on hand in the kitchen that will provide a healthy alternative to a meat-focused meal. Some diet experts advise that by simply cutting out two or three meat-based meals a week you can improve your health dramatically.
If you're worried that vegetarian cooking limits your food options don't worry -- not every vegetarian recipe is made of tofu and soy. When shopping for a vegetarian cookbook look for one that is designed specifically for "new" vegetarians. Many vegetarian cookbooks include meat substitutes such as soy-based meatless products and also fish and eggs, while other vegetarian cookbooks use only vegetables and fruits as the main ingredients.
Vegan cookbooks are by far the most restrictive, so if this is your first attempt at cutting meat out of your diet then you may not want to jump right into a vegan version unless you are ready for a huge change. If you want to ease slowly into a meatless diet then look for a vegetarian cookbook designed for people who are new to a vegetarian diet.