Change has become a constant, and the acceptance of this factor in all areas of our living has had the effect of continually challenging the assumptions that guide our personal and public relationships, and our productivity. That there are some important challenges to the assumptions on which school library service operates is the basis of my discussion today. The setting is the school the school which Dr. Hansen has discussed. When School Libraries Today and Tomorrow was formulated in 1945 to provide standards for the development of post-war school library service, the first objective outlined for the school library was to serve the school in the accomplishment of its educational purposes. That objective continues to be the foc...