This book contains the invited talks from the 1995 Boulder conference on the Search for Extra-Solar Planets. It describes the scientific basis, technological options, and programmatic implications of large-scale efforts to find and study Earth-like planets outside the Solar System, and is targeted at astronomers, planetary scientists, engineers, and graduate students. These are among the first papers in this rapidly expanding field, driven by the first discoveries of planetary companions to nearby stars and providing the current status of the search for extra-solar planets. What sort...