a magazine, newspaper, or website targeting readers who work in a given trade, profession, or industry

an industry specific magazine, newspaper or sometimes just even an email newsletter that is written specifically for retailers in a particular industry

a specialized business print publication aimed at retailers, wholesalers, distributors and other intermediaries who buy and sell for resale and other individuals who in some way are involved with the movement of goods through distribution channels; editorial matter (and advertising) is directed toward a specific industry, profession, or occupation. Also referred to as a business publication, business or trade book, business or trade journal, business or trade magazine, and business or trade paper. See horizontal publication and vertical publication.