Linear text has been the dominant form of written communication since the invention of the printing press, but new technologies are challenging this convention. The document proposes "Polyfoil documents" as a new non-linear format that is better suited to digital media and Internet publishing. Polyfoil documents would allow for cyclical, branching, and complex structures rather than strictly front-to-back linear sequences. This format is presented as an important innovation that deserves patent protection in order to promote its adoption and prevent it from remaining undeveloped.