The 2020 edition provides comprehensive information on the tariffs and non-tariff measures imposed by over 170 countries and customs territories. It is a joint publication of the WTO, the International Trade Centre (ITC) and the United Nations Conference on Trade and Development (UNCTAD).

Tariff data are presented in comparative tables indicating, among other things, the average "bound" or maximum tariff each economy may apply to its imports and the average tariff it applies in practice. A one-page profile for each economy provides more detailed data, with tariffs broken down by product groups and trading partners.

A summary table providing selected indicators on the imports and exports for each country and customs territory is also included. In addition, the publication provides statistics on non-tariff measures, such as safeguards and anti-dumping measures, used by WTO members.

The special topic for this edition is market access to medical goods related to COVID-19.