Most of the works are in codex form, a few in scrolls.

Written in codex form, the earliest written copy is from the 14th century.

Early Christian writers soon adopted the codex form, and in the Græco-Roman world, it became common to cut sheets from papyrus rolls to form codices.

PC workstations will be obsolete a long time before books (in the codex form) are.

(Around 90 CE, Martial circulated his poems in codex form, presenting this as a novelty.)

In Byzantium, much of this work devoted to preserving Hellenistic thought in codex form was performed in scriptoriums by monks.

The manuscript was written on papyrus in codex form.

Hopscotch, a 1962 "hypertext novel (in codex form)" by Argentine author Julio Cortázar.

Unfortunately, most of the earliest manuscripts were not in codex form, that is, parchment bound in leather volumes, but were in highly perishable papyrus.

Apuleius's novel was among the ancient texts that made the crucial transition from roll to codex form when it was edited at the end of the late 4th century.