There are different brochure definitions, but they basically say the same thing. Simply put, a brochure is a document, either made from paper or digital, that contains information or promotional content. Most of the time, a brochure is mainly used as a marketing tool. Companies often use brochures to promote their products or services. There are different types of brochures, and different ways to distribute them, but more on that, a little bit later.

Brochure is a promotional document primarily used to introduce a company, organization, products, or services and inform prospective customers or members of the public of the benefits. Although, initially, a paper document that can be folded into a template, Pamphlet or  leaflet a brochure can also be a set of related unfolded papers put into a pocket folder or packet or can be in digital format.
A brochure is usually folded and only includes promotional summary information. A booklet is typically several sheets of paper with a card stock cover and bound with staples, string, or plastic binding.