"A History of the 20th Century: Conflict, Technology & Rock 'N Roll" by Jeremy Black and Alex Woolf is a comprehensive reference book published by Arcturus Publishing in 2021. The hardcover format features 352 pages filled with illustrations, making it engaging for young adults, ages 9-12, and adults alike. The narrative explores the intersection of environment, history, technology, and popular culture in the 20th century, offering a deep dive into the era's complexities. With a focus on engineering, art, culture, and politics, this book provides a valuable resource for those interested in the intricate tapestry of the modern world.