investigations such as ways of including new types of bark from other species. In addition, the Centro de Investigaciones y Estudios Superiores en Antropología Social is urging a reforestation plan in order to implement a more sustainable supply of bark. See also Codex Borbonicus Notes References Further reading Codex Espangliensis: A modern art codex printed on amatl paper. External links The Construction of the Codex in Classic- and Postclassic-Period Maya Civilization by Thomas J. Tobin. Maya codex and paper making. Science and technology in Mesoamerica Mesoamerican literature Aztec science and technology Aztec society Paper art Pre-Columbian art