SPIN is a non-technical, easy-to-learn and inexpensive-to-implement farming system that makes it possible to earn significant income from land bases under an acre in size. Whether you are new to farming, or want to farm in a new way, SPIN can work for you.

SPIN offers learning guides that detail the concepts and practices of urban farming and offer specific models of operation you can use to create your own independent farm business. Each guide builds on the next so that your understanding grows along with your ability to put SPIN into practice. You can work through the learning series at your own pace. And the authors are available by email to answer your questions.

http://www.spinfarming.com/