Written as a practical manual for human service providers at the local level, this guide discusses the interpersonal nature of coordination, gives historical background on the problems of program coordination at the federal level, and provides a detailed checklist for implementing coordination efforts among local agencies. Proposed techniques are based on experiences of four pilot projects funded to develop effective coordination of Department of Labor programs that serve migrant and seasonal farmworkers; the organizational framework and specific goals of these pilot projects are summarized. Background information, illustrating the failure of the federal government to provide a model for coordination, includes discussion of problems experienced by federal manpower programs as a result of program overlap, fragmentation, and poor information sharing. The special problems of farmworker programs are reviewed in light of the lack of coordination among the six federal agencies which serve or collect data on the farmworker. Principles of effective inter-agency coordination are discussed with emphasis on the need for identifying mutual goals and benefits, establishing well-defined agency roles and responsibilities, and communicating effectively with other agencies and with the client. (JH)