While grappling with anxiety and the physical and mental health consequences of the way the United States treats immigrant bodies, in UNDOCUMENTS, John-Michael Rivera documents and scrutinizes what it means to seek opportunities in America. With a focus on the poetics of Latinx documentality itself, this book is concerned with the complicated and at times contradictory ways peoples of Greater Mexico have been documented and undocumented within systems of colonial knowledges, and how these peoples have been rendered as specters of the bureaucratic state. Rivera takes us through the painful, anxiety-ridden, and complex nature of what it means to be documented or undocumented, and the cruelty married to each of these states of being.