"Time and Again" is a science fiction novel written by Jack Finney. It was first published in 1970 and has since become a classic in the genre. The story follows the adventures of Simon Morley, an illustrator living in New York City in the 1960s, who becomes involved in a secret government experiment involving time travel. Morley is recruited to participate in a project that aims to send someone back in time to the New York City of 1882. Through meticulous research and training, Morley prepares himself for the journey, which involves immersing himself completely in the time period to blend in seamlessly. Once he arrives in the past, Morley finds himself captivated by the culture and lifestyle of 1882 New York. However, he also becomes entangled in a mystery involving a beautiful young woman and a tragic event that occurred in her life. As Morley delves deeper into the past, he must navigate the complexities of time travel and the ethical implications of changing history. The novel explores themes of nostalgia, love, and the passage of time, while also providing a fascinating portrayal of life in both the past and the present. "Time and Again" is praised for its meticulous attention to detail and its immersive depiction of historical settings. It has remained popular with readers for decades and continues to be regarded as a standout work in the time travel genre.