Here is the most comprehensive guide ever to building your own castle in the air, be it a simple child's playhouse or an adult's cozy retreat with all the modern conveniences, including electricity. Peter Nelson, the nation's foremost authority on treehouses, tells you everything you need to know about designing and building the house that's right for you and your family. He gives you information on site selection (why some trees provide better homes than others), safety issues, tree care, advice on styles and materials, and other essential rules of thumb that will save time and money.