This book does not just tell you that tomatoes grow well with peppers and so on and so forth. The unique design of the book allows you to find a variety of crops that will help your main crop in the areas that you choose. First of all, this book explains the benefits of companion plants and why you may want to choose to grow some plants with others. There are nutritional requirements, beneficial insects, soil improvers, and weed deterrents, just to name a few.
Secondly, I love the way that this book is set up. The companion plant pages of the book are split into thirds, so you have three rows of flip cards on a page. The middle cards are central crops you would like to plant. To use the book, you flip the middle card to your main crop you would like to plant, along the top and bottom of that card are coded dots with benefits. You then flip the top and bottom cards to match the dots up with the benefits you would like to find the compatible plants. The top cards are companion plants that will support the plants aboveground needs while the bottom cards will support belowground needs. I really liked this setup, it allows you to choose from a large variety of plants and the companion plants are more likely to suit your needs as a gardener and your plants needs.
See an example of companion plants for my tomatoes below:
This book was provided for free in return for an honest review.
More Info: http://www.randomhouse.com/book/235292/the-mix-match-guide-to-companion-planting-by-josie-jeffery
Author Info: http://www.randomhouse.com/author/187599/josie-jeffery