Brochures are a great use for an accordion fold, especially 4 panel legal size brochures, and many types of maps use this fold as well, since a large number of panels can be folded in, accommodating a larger paper size and ultimately a lot more information in a standard finished size. The smallest version is also known as the Z-fold. This type of fold usually has two or more parallel folds that result in the sheet opening like a fan.
