Peter Preuss headed ISSCO, Integrated Software Systems Corporation, a San Diego-based company, until it was purchased by Computer Associates in 1986. ISSCO was originally formed in 1970 without outside capital, and grew under the leadership of Mr. Preuss as President, and later as Chairman of the Board, into one of the world's leading independent developers and suppliers of visual information systems software used to create high quality graphics for business, government, scientific, engineering, and project management applications. Throughout its history, ISSCO was highly profitable, and at the time of its sale marketed software through a network of nineteen domestic and fourteen foreign sales offices. It was a publicly traded company on Nasdaq. Mr. Preuss was a founder and long-time director of the National Computer Graphics Association. Mr. Preuss was born in Berlin, Germany, and received his undergraduate education at the Technical University of Hanover. He was elected to an honorary fellowship, which allowed him to enroll in the Graduate School of Mathematics at the University of California, San Diego, where he earned a Master's Degree. He had completed most of the work toward a PhD when he founded ISSCO. At the time, ISSCO was the first software company specializing in computer graphics. In 1985, Mr. Preuss founded The Preuss Foundation, Inc., which specializes in fostering communication among scientists in the field of cancer. The Preuss Foundation has hosted and sponsored thirty-three seminars and conferences for various specialty areas of cancer research as they pertain to CNS malignancies. The foundation has also funded many research projects since its inception, and founded the Preuss Laboratory for Molecular Neuro-Oncology in San Francisco, California, and the Preuss Laboratory for Brain Tumor Research at Duke University Medical Center in Durham, North Carolina. Mr. Preuss was a Regent of the University of California and served a term on the Advisory Committee to the Director of the National Institutes of Health. He serves or has served on the boards of the following institutions: The National Brain Tumor Foundation, Duke University Cancer Center Board of Overseers, Dartmouth Medical School, The Board of Trustees, The Children's Hospital and Health