The authors describe how to choose a combination of cover crops to provide your soil with what it needs—more nitrogen, more tilth, more protection from eroding rains, or all of these things. They describe how garden soil can be enriched by planting it to buckwheat, berseem clover, soybeans, oilseed radish, or oats, either before the garden crop has been seeded or after it has been harvested, or else by planting these crops successively—as many as three in a season—in a portion of the garden reserved for cover crops alone. They discuss how to make best use of your garden space while using cover crops to improve your soil, and how to combine cover crops in order to accomplish several goals simultaneously (6 pages; 2012).