El quadern gris

*El quadern gris* (The Grey Notebook) is a semi-autobiographical novel by Spanish writer Rafael Sánchez Mazas, often considered a precursor to modernist literature. It is presented as a personal journal, capturing the author's reflections, memories, and philosophical thoughts during a tumultuous period in early 20th-century Spain. The book explores themes of identity, change, and the passage of time through poetic language and introspective tone. Its contemplative style invites readers to consider the inner life and mental landscape of the author, offering a nuanced glimpse into personal perception amidst societal upheaval.