This CD, really a building manual, is a 110-page, 100-image, 7500-word Power Point. It can be shown on computers made since 1998 (including Windows 98, Second Edition) whether or not you have a Power Point program because a PP reader is included. You can view, project or print it. This CD will help anyone wanting to build an Earthwood-type home, one or two stories. It also covers the 16-sided post-and-beam frame. The CD should be used in combination with Rob’s book Earth Sheltered Houses and the Earthwood Plans.