The establishment of a large number of small independent publishing houses fifteen years ago led to a revival of risography. Artists and designers from all over the world have installed a “Riso” in their studios to produce small print runs inexpensively and independently of large printing houses. Smaller publishers in Latin America still print exclusively on the Risograph on grounds of cost. The primitive stencil printing process has a huge colour spectrum and creates an interesting optical effect by means of spot colours and coarse screening, which gives the result a homemade look. In the book, factors like colour, paper, file preparation, printing, and processing are explained. Exploriso appears in the first year of the Discovered series.