This survey of recommended standards for library service in some 20 countries starts with national libraries; covers libraries in universities and colleges, special libraries, and public libraries; and concludes with school libraries. Within the chapters on each type of library, countries are considered separately. Abstracts are given of the standards compiled in each country by commissions, government agencies, and/or library associations. Standards generally cover staff, services, quantities of materials, physical plant, and finances. From this survey, a framework of model library standards has been drawn for the purpose of aiding developing nations. (Author/SL)