Hypertextualities are forms of textualities that are rendered through HTML, an abbreviation of hypertext mark-up language. Whether textual or intermedial, hypertextualities are ﬂuid and open forms that allow the reader or viewer to move beyond the world of the interface and penetrate the realm of the work of art. Hypertextualities are ﬂuid in that they dissolve the separation of the roles of subject (viewer) and object (work of art). They are similarly open, because they allow the viewer to move towards completion of the work of art while also permitting future viewers to continue to expand and enrich it. Hypertextualities introduce a performative dimension to the acts of reading and viewing. In order to be engaged with, hypertexts need to be acted upon, and reading hypertext becomes equivalent to putting it into action. By bringing the viewer into the work of art, and allowing them to exist in both the real and the virtual, hypertextualities also multiply the viewer’s position. So hypertextualities are complex and sophisticated textualities that expand the world of text into the world of action.