Contributions of participants in a three-day invitational symposium for representatives of the 21 California high schools which were most successful in sending Black and Hispanic students to the University of California and the California State University are compiled in this document. The publication addresses two major goals of the California Education Summit: (1) to increase the percentage of students entering high school who enroll in and earn bachelor's degrees from four-year colleges; and (2) to make it possible for all segments of the school population to achieve at a higher level. The document begins with a listing of essential principles for high schools: make the school accountable; build an academic school culture; make access to college preparatory classes a reality; provide professional support for staff; include parents as an essential part of the process; provide coordinated student support services; attend to articulation; and make information about colleges available. For each principle implementation suggestions are provided. A further chapter addresses how district and institutions of higher education can support schools' efforts. Appendices provide lists of resources for districts developing college preparatory programs, participants in the symposium, and members of the Advisory Committee on College Preparation of Underrepresented Students. (JB)