The United Nations Documents Index covers documents and publications issued by United Nations offices worldwide. The publication indexes a wide variety of documentation such as major reports and studies, resolutions and decisions, draft resolutions and meeting records, including documents of restricted distribution. The information in this publication is arranged in the following nine sections: documents and publications; official records; sales publications; United Nations maps included in UN documents; United Nations sheet maps; United Nations document series symbols; author index; title index and subject index.

The report presents findings from the 2018 revision of World Urbanization Prospects, which contains the latest estimates of the urban and rural populations or areas from 1950 to 2018 and projections to 2050, as well as estimates of population size from 1950 to 2018 and projections to 2030 for all urban agglomerations with 300,000 inhabitants or more in 2018. The world urban population is at an all-time high, and the share of urban dwellers, is projected to represent two thirds of the global population in 2050. Continued urbanization will bring new opportunities and challenges for sustainable development.

The United Nations Documents Index provides information on documents and publications issued by United Nations offices worldwide. The information is presented in nine sections covering the areas of documents and publications; official records; sales publications; United Nations maps included in UN documents; United Nations sheet maps; United Nations document series symbols; author index; title index and subject index. The index is a two part set. Publishing Agency: United Nations (UN).