This document discusses different types of gatefold brochures. A gatefold brochure is a three-panel print with two opposite sides that fold to meet in the center, making it wider than a standard tri-fold brochure. The gatefold style provides more space for creative design on the panels that fold to overlap in the middle. Sizes mentioned include an 8 by 8 inch square gatefold and a 14 by 8.5 inch rectangular gatefold.