A severe case of GEES, Gardener's Equipment Excitement Syndrome, is what induced Andrew Lee to begin marketing his backyard produce. At the start of the book, he pays his due homage to the benefits of good, organic soil. There are many articles in here by other market gardeners recounting their unique experiences and sharing successful ideas. It begins when a friend, admiring your garden design, asks you to help with hers. Read this handbook on the practical considerations of running a landscape business.
Appendices provide lots of resources for further help.
And keep this handy guide on your desk. Softcover 277 pp pub. Take a closer look and you'll discover he's opened up a whole new venture in gardening. Note that he says four season harvest, not four season growing. His system depends on constantly clearing out spent crops, and replanting with crops appropriate to the coming season so that you always have a fresh crop to harvest.