In preparing this bulletin the writer has addressed himself to some of the more important questions with which school boards and architects have to deal when they enter upon the work of planning a school building. It is not a treatise on school hygiene, but a discussion of the requirements of school buildings from the schoolman's point of view and includes numerous illustrations of modern school buildings. The following are appended: (1) References on school architecture and sanitation; (2) F. Louise Soldan High School, St. Louis, Missouri; and (3) Types of modern school houses. (Contains 276 plates and 12 figures.) [Best copy available has been provided.]