Vinyl record jackets are single sleeve printed squares with full-colour printing on the exterior. The record is first placed in a paper or plastic sleeve and then slips into the printed jacket prior to shrink wrapping. Most records you buy off the shelf are packaged this way. However, a gatefold opens like a birthday card and has two printed panels on the inside. The final package is essentially two jackets connected by a spine, and as such they can hold up to 2 records. Gatefold packages offer a lot more real estate for your artwork so the end result can be quite stunning.