Paper airplanes have a wide variety of designs, ranging from semi-realistic vehicles to just a disc of paper. Each one has their own specialty, be it speed, range, stability, or some other thing, like tricks. More often than not, these planes have the same design elements, just adapted in a different way. The design on the right is the one I used most often in my childhood, and as such is my personal favorite.   

A set of instructions for making a basic paper airplane