Two library orientation methods, a self-guided cassette walking tour and a slide-tape program, were administered to 202 freshmen students to determine if moving through the library increased students' ability to develop a mental map of the library. An effort was made to ensure that the two orientation programs were equivalent. Results from the 148 completed tests indicate walking tour subjects performed somewhat better than those who only viewed the slide-tape program, but the difference between the two orientation groups was not significant. Test results show the need for orientation and reveal shortcomings in certain building and sign designs. A literature review, footnotes, sample floor plans, and tables displaying orientation test results are included. (Author/THC)