"The Waning of the Middle Ages" is a historical analysis of the cultural life of the late Middle Ages, particularly in France and the Low Countries, during the 14th and 15th centuries. It delves into the period's modes of thought, forms of expression, religious beliefs, and social norms. The book argues that the era was characterized by a highly stylized and overwrought civilization, marked by an excessive emphasis on chivalry and courtly love, a religious mindset dominated by the fear of death and the afterlife, and a cultural milieu that was both highly imaginative and deeply pessimistic.

"Rashomon and Seventeen Other Stories" is a collection of narratives that delve into the depths of human nature, exploring themes such as morality, truth, and the complexities of the human psyche. The stories, set in various periods of Japanese history, range from tales of ancient samurai to accounts of disturbing personal experiences, offering a rich and diverse exploration of Japanese culture and society. The title story, "Rashomon," is a psychological examination of a servant's moral dilemma during a time of civil unrest.

"Kokoro" is a novel that delves into the complexities of human relationships and the changing cultural climate of Japan at the turn of the 20th century. The story is narrated by a young university student who forms an unlikely friendship with an older man, referred to only as "Sensei". As their bond deepens, the young man learns of Sensei's tragic past, his feelings of guilt and regret, and his struggle to find peace. The novel explores themes of loneliness, betrayal, and the moral dilemmas of modern life.

"The Letters of Vincent van Gogh" is a compilation of correspondence that provides a deep and personal insight into the mind of one of the world's most famous and influential painters. Through these letters, primarily written to his brother Theo, the reader gains an intimate understanding of Van Gogh's thoughts on art, his emotional struggles, his aspirations, and the profound relationships he maintained throughout his turbulent life. The collection not only sheds light on his creative process but also reveals his reflections on existence, his financial difficulties, and his relentless pursuit of his artistic vision, offering a poignant look at his world from his own perspective.

"An Inquiry into the Good" explores the philosophical concept of 'good' through an examination of reality and experience. The author integrates Western philosophical approaches with Eastern thought, particularly Zen Buddhism, to delve into topics such as pure experience, intuition, and the unity of consciousness. The work seeks to establish a foundation for understanding reality that transcends traditional dualities such as subject-object and ideal-real, proposing instead a notion of reality that is dynamic and continuously self-creating. This philosophical inquiry aims to articulate a comprehensive worldview that harmonizes ethical, metaphysical, and epistemological perspectives.