To support Transgresoras: Mail Art and Messages, 1960s–2020s, an exhibition that investigates artworks made and exchanged by an intergenerational group of more than 30 Latinx and Latin American women-identifying artists. It draws on the foundational work of artists who, from the 1960s to the 1980s, used the postal system to transgress a varied set of restrictive systems, ranging from gender expectations to authoritarian regimes and censorship. The first in-depth publication devoted to this critical area of artistic production promises to become an important resource for future scholarship.