Citizens use a green passport. Government officials are given the grey document while diplomats use black. In fact, these are the official colours currently in use.
The cover features Tonatiuh, the Sun god, shining over the world, printed in golden ink. Since a passport is a gateway to cultural and personal exchange, I include a poem in its original Náhuatl and Spanish by Nezahualcóyotl, an Aztec nobleman, that celebrates the inherent beauty of nature and mankind.
The word passport is printed in Spanish, Náhuatl and Yucatec Mayan, the three most spoken languages in Mexico.