New evidence this year corroborates the rise in world hunger observed in this report last year, sending a warning that more action is needed if we aspire to end world hunger and malnutrition in all its forms by 2030. Updated estimates show the number of people who suffer from hunger has been growing over the past three years, returning to prevailing levels from almost a decade ago. Although progress continues to be made in reducing child stunting, over 22 percent of children under five years of age are still affected. Other forms of malnutrition are also growing: adult obesity continues to increase in countries irrespective of their income levels, and many countries are coping with multiple forms of malnutrition at the same time – overweight and obesity, as well as anaemia in women, and child stunting and wasting.

This report, which comprises three booklets, provides a comprehensive analysis of the crime of trafficking in persons and how different countries are responding to this crisis. Countries worldwide have been detecting and reporting a larger number of victims and are also convicting more traffickers than ever before. This may well be the result of an increase in the capacity to identify victims over the last few years. While the number of reporting countries did not significantly increase, the number of victims reported in different countries did increase. The trend has unfortunately been growing over the past few years.

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.

Languages are not only tools of communication, they also reflect a view of the world. Languages are vehicles of value systems and cultural expressions and are an essential component of the living heritage of humanity. Yet, many of them are in danger of disappearing. UNESCO's Atlas of the World's Languages in Danger tries to raise awareness on language endangerment. This third edition has been completely revised and expanded to include new series of maps and new points of view.