This room presents a compilation of materials from the library and archive of the Antonio Pérez Foundation in Cuenca, including publications from the Ruedo Ibérico publishing house, the Cuadernos series, and some original documents that Antonio has cherished for years as one of the most charismatic adventures of his time in Paris. It also features a selection of paintings, drawings, and prints from the permanent collection of some of the artists who participated, providing a different artistic approach to a publishing house that posed a critical challenge to the intellectual repression of a country.