Companion planting involves strategic location of the veggies and fruit that you plant to maximize space available, deter or distract pests and to take advantage of the nutrients available in the soil where you live. A Beginners Guide to Companion Planting: Companion Gardening with Flowers, Herbs & Vegetables takes a look at some of the topics involved in maintaing a successful companion garden. Topics covered in this book include:

History, reasons & benefits for companion planting
Planning your garden including garden bed ideas and soil management
Guides to beneficial companion plants including flowers and herbs
Combinations of plants that work well together or to avoid
Companion plants to encourage beneficial bugs into your garden

While there are a few different types of strategies, there are no hard and fast rules for which strategy you should choose, this book will help to guide you in the right direction.