Test Tube Man is an exciting science fiction novel written by popular English author Kazuo Ishiguro. This book tells the story of a world where people are created through genetic modification and grown in laboratories. The main character, who spent only thirty-seven years as an organ donor, decides to find the meaning of his existence and understand the true essence of human identity. Due to the sophisticated writing style and deep moral issues raised in the novel, readers get the opportunity to think deeply about the value of life, the loyalty of friendship and the search for one's own truth. "Test Tube Man" is not just science fiction, but a literary masterpiece that leaves a mark in the hearts of its readers.