The entire Bible would have been a roll of immense length. It would have been clumsy and impractical. It would have made the location of a text very difficult, especially if the desired text occurred ...
Codex name refers to the author of the Italian text, Pedro de los Ríos; this text, explaining thepictographs, is an amplified translation of the Spanish text of the Codex Telleriano-Remensis.