This document has three parts: (1) an updated job description of the secondary school principalship, (2) a modern approach to an evaluation of the principal's performance, and (3) a statement of how to determine salaries for principals. The text stresses that the principal must perform a variety of roles: educational leader; administrator; communicator between students, staff, community, other schools, board of education, and colleagues; conflict mediator; educator of educators; ombudsman; and professional. It is emphasized that the performance of a principal must be evaluated on the basis of all the roles he performs, and that objective evaluation instruments such as graphs and checklists fail to evaluate the entire responsibility. Results of a national survey on administrative salaries, arranged alphabetically by school district, are appended. Data are categorized according to (1) relationship between supervisory/administrative and teacher schedules, and (2) considerations and factors taken into account in setting supervisory/administrative salaries. (DE)