The planning of public library buildings today is complicated by a set of inter-acting circumstances, major among these are the publications explosion and our population explosion. These, when coupled with new technologies and systems, demand a greater knowledge of the total library function on the part of the librarian, the planning agency and the architect. As library needs, services, technologies and systems are changing at an increasing pace we must strive toward an understanding that will provide the greater possible flexibility of design construction and utilization of library space. This present text aims at bring together viewpoints on the scope and procedure of library building planning, as a reference tool its utilization increases at first planning stages when coupled with an instructor's building experiences and expertise.