Complex sentence: Many forms of printmaking, in addition to rubber stamping, are used to create multiples, and copy art (xerography, photocopy) is a common practice, with both mono and color copying being extensively used within the network.
Split into simpler sentences: Many forms of printmaking, in addition to rubber stamping, are used to create multiples. Copy art (xerography, photocopy) is a common practice, with both mono and color copying being extensively used within the network.