The making of the daily schedule of classes is a problem of no mean importance. In fact, the solution of this problem requires much knowledge and skill on the part of an administrator. It not infrequently happens that an administrator loses the confidence of his teachers through an attempt to substitute a "sketched" daily schedule for one that should have been worked out in accordance with the best principles of schedule making. In such a case, the principal is wasting much of the time of his teaching staff. It is therefore vital that the principal understand the principles underlying the construction of the daily schedule of classes. An investigation of the literature on schedule making reveals the fact that very little has been written on this subject. This lack of material may be due to the too common belief that there is no best procedure to follow in solving the problem. Or it may be due to an impression that schedule making is a comparatively easy task. Anyone, however, acquainted with the problems of high-school administration is fully aware that the problem of schedule making is as complicated as any administrative problem. This bulletin covers the following topics: (1) Some problems involved in schedule making; (2) How the daily schedule is made in certain schools; (3) An account of schedule making in a Detroit, Michigan, high school; (4) An account of schedule making in a Detroit intermediate school; and (5) A summary of practices in schedule making. An Annotated Bibliography is included. [Best copy available has been provided.]