brochure, leaflet, handbill, flyer...
booklet |ˈboŏklit| noun a small book consisting of a few sheets, typically with paper covers.
That is what defines a booklet by definition but through creativity there are endless solutions. A friend of mine pointed these "booklets" out to me and thought they were great examples of other ways you can make/ design a booklet other then staples in the upper left or folding a piece of paper in 3.
More on this project can be seen at http://www.theroot42.org/
work done by Ben Guernsey