The principal's desk is a crowded place at the end of the year. Memos from the superintendent, school board meeting minutes, parent messages, and reports on many aspects of the school and its functions make the desk appear to be the school's dumping ground. Among these reports is the librarian's annual report--a summation of the year's goals, results, statistics, and recommendations for the next year. The librarian's annual report to the principal proves adherence to the goals and to the principle of ongoing assessment for improvement. By presenting the information gathered over a year, as well as a thoughtful analysis of it, the librarian not only performs a self-evaluation of his or her own goals, but also provides a status report to the principal that positions the library program among other branches of the school that routinely file annual reports. As a tool for program assessment, the annual report helps the librarian determine how well the program meets the information needs of the school patrons. In addition, communication between principals and librarians is critical for the success of the library program. Compiling an annual report allows librarians to present evidence of the best practices in any of the four roles of the school library media specialist: (1) teacher; (2) instructional partner; (3) information specialist; and (4) program administrator. The annual report is an integral part of the communication that educates the principal about the library's impact on student success and the library's goals and progress towards its mission. The report gives the principal a knowledge base of library program operations and equips the principal to talk with the librarian as a fellow program administrator about both the library's and the school's mission and goals. In this article, the author discusses what an annual report contains.