"Square with the initials K4" is a work of the Portuguese artist and writer Jose de Almada Negreiros. The book tells about important aspects of art and literature, as well as their influence on society. The author explores the themes of loneliness, self-improvement and improvement of the world through creativity. "Z Square" is not only a work of art, but also a deep reflection on life, love, faith and real truth. His pages impress with their philosophical depth and mastery of language, captivating the reader from the first lines and not letting go until the very end."