Margolin was formerly a conservation manager for Redwood Regional Park in California where he conducted wildlife projects with schoolchildren from the area. Together they planted trees, built dams, cut trails, collected seeds, etc. Beginning with a round-up of ""elementary concepts"" (not so elementary really), in establishing a healthy population of flora and fauna--from food, cover and water to multiplant-and-animal habitats--Margolin then outlines basic activities, techniques and materials for intelligent care of wild areas, however small. Other chapters deal with tree cutting, pruning and planting, collection and dispersal of seeds, construction of watering holes and brush piles, etc. Throughout there are surveys of pertinent literature, charts, and pleasant instructive illustrations by Michael Harney. Margolin closes with a chapter for adults interested in starting an educational conservation program for children. He is no stylist (by the time you've reached the umpteenth reference to ""kids"" you're ready to hide in one of those brush piles) but it's all very useful and reasonably explicit.