An advertising insert is a promotional material that is inserted into a publication, such as a newspaper, magazine, or mailer, with the purpose of promoting a product, service, or event. These inserts are typically eye-catching and contain persuasive messaging to entice the reader to take action, such as making a purchase or attending an event. They are often used by businesses to target a specific audience and increase brand awareness. Advertising inserts can come in various forms, including flyers, brochures, coupons, and samples, and are a popular marketing tool due to their ability to reach a large audience at a relatively low cost.