When we first published Over the Edge back in 1992, the first couple of support products were small booklets (usually adventures) around 16 pages in size. I think we released the first one of these, New Faces, at the same time as the core rulebook.
We actually still have copies of the printed book in stock (as does Warehouse 23), but this is one of those titles that is hard to find in stores on account of its age. (Heck, it's not easy to find stores or distributors that were even in business back when it was published.) But now you also have the option of buying it in digital format, available today from e23.