Book excerpt: The Forest Products Marketing Laboratory of the U.S.D.A. Forest Service's Northeastern Forest Experiment Station has been studying the history of the forestry cooperative, and has analyzed the experiences of the cooperatives that have failed as well as those that have succeeded. In addition, the New Services Division of the U.S.D.A. Farmer Cooperative Service has a continuous program of research to assist members and managers of cooperatives. Out of these studies we can offer some practical guidelines to any group that is thinking about starting a forestry cooperative.