The best method of extending the efficiency of the librarian, now practical in most budget conscious school districts, is the use of student assistants to the librarian. In keeping with the policy of the Department of Education and the Oregon State Library to improve the quality of secondary school libraries and the services they perform, this manual for student librarians has been prepared. Students who are selected as library assistants will aid the librarian in fulfilling the many responsibilities of the library. These students will work in the library one period each school day and will receive credit as they would for any class. General qualifications for a student library assistant are: (1) the student should be a junior or senior, (2) the student should have an interest in some academic field and (3) the student should have some typing ability. Student aides will perform duties in two main categories: clerical duties and mechanical duties. Detailed descriptions of these duties are given. (Author/NH)