The book "Exploring Stream of Consciousness in Notes from Underground" offers an in-depth analysis of the stream-of-consciousness technique in the inner monologues of Dostoevsky's work "Notes from Underground." The author, Zeray Hailekiros, examines how this narrative technique was employed by Dostoevsky even before it was formally named in psychology in the late 19th century. While many literary studies focus on works from the early 20th century, this book highlights Dostoevsky's innovative approaches that relate the inner thoughts and feelings of his characters to the external reality. The analysis is conducted using a descriptive approach based on a specific conceptual framework to verify the characteristics of stream of consciousness in selected text excerpts. By applying five defined parameters, the complexity of the narrator's inner world is revealed.