本文审查了图书馆政策制定和实施，以及与尼日利亚学校图书馆服务有关的影响。The paper reviewed the concept of library and information science policy and school library services in today’s society as one that is required at every step of the way, highlighting that the progress of any nation depends on information generation, dissemination and use which is required early enough at the primary and secondary foundation levels of education. The paper reviewed the present situation of school libraries in the country and found that the school libraries were characterized with poor accommodation, unavailability of trained staff, inadequate relevant materials and apathy on the part of school administrators and government and posited that the situation of school libraries in the country is still unsatisfactory. This paper highlighted the importance of library and information science policy formulation and implementation to achieve a progressive education and development via the provision of access to and the availability of information and knowledge with speed and efficiency to all. The paper takes a position that formulating policy for school library services will lead to a massive infrastructural development in school library development. It will also enhance quality library service delivery and ensures that school libraries are managed by professionals. The paper was concluded with recommendations that government should set up a committee of experts made up of librarians, school managers and publishers to help in policy formulation and implementation for school library development in Nigeria.