The purpose of this paper is to discuss marketing strategies for school library. The writer divided marketing environment of school library into macro-external environment, micro-external environment, substantial environment, and operational environment. And analyzed characteristics of four target audiences -school administrator, teachers, students, and parents and local society- for school library marketing and suggested approach strategies to each target audiences. Four communication strategies of school library media specialist for effective marketing are discussed; administrative communication, behavioral communication, cooperative communication, and social communication.