Paul Shippee is director of Colorado Sunworks and is a solar designer and builder. He was the founding President of the Colorado Solar Energy Association, and a teacher. Paul holds a degree in Civil Engineering, with a major in Structural Engineering from the University of Connecticut. He helped plan housing experiments in energy conservation with the U.S. Department of Housing and Urban Development, and designed and built the SunEarth House, which was the best-rated energy conservation, earth-sheltered home in a HUD-sponsored study. He holds a U.S. patent on a solar water heating system. Paul is currently living in a rammed-earth/strawbale home that he has designed as a personal residence in Colorado. His book, THE LANGUAGE OF SOLAR ENERGY: Heat Loss & Solar Gain for Buildings, is available from his website: crestonesolarschool.com.