This work — ‘The Book of the People’ — contains the original myths, creation story and beliefs of the Maya. Written rather late in the day between 1554-8 from oral accounts of the Quiché people and fully illustrated, it went on the missing list in the early 1700s.
Luckily a Spanish monk named Francisco Ximénez managed to borrow it first and make a copy (in Latin). This is practically our only source of information for Maya Cosmology.
If anyone has the original book and can return it to the library from whence it came, all overdue fines will be canceled.