Through the centuries, the loss of some valuable personal collections meant for Mexico the inability to recover a significant part of its history as a nation. Today, the government takeover of some personal libraries, which in his time belonged to important Mexican writers, represents an important step in the preservation of bibliographic and documentary memory of our country. Also, the digitization of these collections and their incorporation into called Cerebro de la palabra (The Word's Brain), is a critical step in the formation of a large digital record of bibliographic and documentary memory of our country. Made available to the public at the new Ciudadela libraries of Antonio Castro Leal, Jaime Garcia Terrés Alí Chumacero, José Luis Martínez and Carlos Monsiváis, it also offer the possibility to study their lives and works, so different, yet complementary, of five great culture personalities for the Mexican contemporary culture.—Clío TV