Our Planning Department produces a Zoning and Planning primers for our county planning federation. Most find them extremely useful.
The Zoning Board of Appeals:
http://www.westchestergov.com/planni...ningPrimer.pdf
The Planning Board:
http://www.westchestergov.com/planni...ningPrimer.pdf
There is also one for Planning and Zoning Clerks:
http://www.westchestergov.com/planni...ksPrimer06.pdf