This bibliography consists of a listing of papers, reports, and books that discuss and describe observation instruments and methodology and their application in the classroom teaching-learning situation. The entries are presented in three sections: 1) the development of observation techniques and instruments, the use of observation instruments, and statistical considerations related to data collected through observation instruments, and statistical considerations related to data collected through observation methods (85 items); 2) studies in which observation techniques have been used as a research tool (32 items); and 3) papers included in a bibliography compiles by Sandefur and Bressler entitled "Classroom Observation Systems In Preparing School Personnel: An Annotated Bibliography" (39 items). Readers are referred to the Sandefur and Bressler bibliography for annotations of the papers included in section three.(Author)