A trade fair (trade show, trade exhibition, or expo) is an exhibition organized so that companies in a specific industry can showcase and demonstrate their latest products and services, meet with industry partners and customers, study the activities of rivals, and examine recent market trends and opportunities. In contrast to consumer fairs, only some trade fairs are open to the public, while others can only be attended by company representatives (members of the trade, e.g. professionals) and members of the press, therefore trade shows are classified as either "public" or "trade only". A few fairs are hybrids of the two; one example is the Frankfurt Book Fair, which is traded only for its first three days and open to the general public on its final two days. They are held on a continuing basis in virtually all markets and normally attract companies from around the globe. For example, in the U.S., there are currently over 10,000 trade shows held every year, and several online directories have been established to help organizers, attendees, and marketers identify appropriate events.

The list of some popular trade fairs is as follow:

USA Exhibitions and Trade Fairs

Canada Exhibitions and Trade Fairs

Europe Exhibitions and Trade Fairs

UK Exhibitions and Trade Fairs

Africa Exhibitions and Trade Fairs

Asia Exhibitions and Trade Fairs

The Middle East Exhibitions and Trade Fairs