Direct mail marketing encompasses a multitude of marketing materials, such as brochures, catalogs, postcards, notifications and sales correspondence. Major corporations are aware that direct-mail advertising is amongst the most effective as well as profitable ways to reach out to new and current clients. Direct mail marketing is really a channel-agnostic form of advertising that allows businesses and charity organizations to communicate straight away to the customer, with advertising techniques that could include email, interactive purchaser websites, online show ads, database marketing and advertising, fliers, catalog distribution, promotional letters, targeted television commercials, journal advertisements etc.