«Portrait of an Unknown Woman» is a novel by Daniel Silva published by HarperCollins in 2022. This thriller and espionage fiction book is presented in hardcover format, measuring 9 inches in length, 6 inches in width, and 1.4 inches in height. With 448 pages, the novel explores themes of international mystery, crime, terrorism, and historical events, making it a compelling read for fans of the genre. Weighing 23 ounces, this book promises an engaging and suspenseful storytelling experience for readers.