Philip Schmidt is an avid environmentalist and a home improvement expert who has written more than two dozen successful DIY books covering subjects from solar power to backyard treehouses to DIY plywood furniture. Included in his list of titles is How to Build Your Very Own Little Free Library , Build Your Kids a Treehouse, The Complete Guide to Patios , The Complete Guide to Greenhouses & Garden Projects and The Complete Guide to Contemporary Sheds. He lives in Colorado.