An accordion fold is created by folding a sheet of paper back and forth with three folds. It is similar to a Z-fold but has one more fold. It forms the letter “M” when viewed from the side.
The name comes from its obvious resemblance to an accordion. The resulting eight panels can be opened with a single pull.
The accordion fold is ideal for event brochures with day by day schedules or a self-guided tour brochure that leads the reader from one point to the next. The ease of the design also allows the front and back to be separate images. For example, you can print a map on the back, and still have four panels for information and a schedule on the front.