This book provides a first-hand account of the conquest of Mexico by the Spanish during the 16th century. It offers a detailed narrative of the events, battles, and interactions with native tribes, including the Aztecs. The author, a soldier in the Spanish army, provides a unique perspective on Hernán Cortés and his tactics, the politics of the time, and the cultural and religious practices of the indigenous people. The book also highlights the hardships, challenges, and ethical dilemmas faced by the conquistadors.

"Poem of the Cid" is an epic poem that narrates the legendary deeds of Rodrigo Díaz de Vivar, also known as El Cid, a Castilian nobleman and military leader in medieval Spain. The story follows El Cid's exile from the court of King Alfonso VI of León and his subsequent journey to regain his honor, win back the favor of the king, and reclaim his rightful place in society. The poem is a rich tapestry of chivalry, loyalty, betrayal, and redemption, offering a vivid glimpse into the socio-political landscape of 11th-century Spain.

"Visions" is a satirical work that delves into the moral and social decay of Spanish society during the Baroque period. Through a series of allegorical and fantastical visions, the author exposes the vices and follies of various social classes and professions. With sharp wit and a critical eye, the text presents a series of dreamlike scenarios where the dead reveal the hypocrisy, corruption, and pretensions of the living. The work is known for its dark humor, rich language, and the use of grotesque imagery to critique the moral shortcomings of humanity, reflecting the author's disillusionment with the world around him.