In this introductory work, the main principles on which British companies are basing management development programs are presented, and stages in assuring a supply of effective managerial talent are set forth: stages in assuring a supply of effective managerial t"lent are set forth: program planning based on clear objectives and communication; assessment of present and future managerial needs through job descriptions, personnel specifications, and other means; appraisal of existing human resources in terms of education, qualifications, and experience; participation by both superiors and subordinates in reviewing managerial performance; coaching, job rotation, lectures, the case method, and other techniques of on-the-job and formal training; and a sound and flexible recruitment policy, especially in dealing with liberal arts and business school graduates. The role of superiors, organizational structure and climate, and the threat of managerial obsolescence are seen as crucial environmental influences on the quality of management. (Document includes appraisal and job description forms). (ly)