The emergence of LEAD Centers, Principals' Centers, and other similar principal support efforts are an acknowledgement of the demanding professional requirements placed upon principals. This document provides an easy-to-use reference listing of resources identified by the Maryland Commission on School-based Administration and the Maryland LEAD Center. The following 10 behavioral skills are featured in individual chapters: interpersonal and human relations; instructional supervision; staff development; planning and goal setting; problem analysis; decision making; communication; coordination; conflict management; and stress management. Each chapter identifies selected programs, print resources, media resources, and potential consultants. The appendices include the following information: (1) behavioral descriptions for the 10 skill areas and a format for developing an individualized professional development plan; (2) names and addresses of the vendors cited and associations that serve the professional development needs of principals; (3) contact information for the educational projects currently funded by the federal government; (4) a list of Educational Resources Information Center clearinghouses; and (5) brief biographical sketches of the authors. (MLF)