Employing a broad range of writing genres and scholarly approaches, UNDOCUMENTS catalogs, recovers, and erases documents and images by and about peoples of Greater Mexico from roughly the first colonial moment. This brave and bracing volume organizes and documents ancient New World Mexican peoples from the Florentine Codex (1592) to our current technology-heavy age, wherein modern lawmakers and powerful global figures desire to classify, deport, and erase immigrants and their experiences.