The book "Supermassive Black Hole" by FastBook Publishing offers a comprehensive examination of the phenomenon of supermassive black holes, particularly in the context of recent discoveries in the NGC 1277 galaxy cluster. It is based on scientific articles and information sourced from open resources. The research conducted by scientists from the University of Texas sheds light on the characteristics and environment of NGC 1277, a galaxy located 250 million light-years away from Earth in the constellation Perseus. The galaxy is remarkable as it contains only old stars, with the youngest stars being 8 billion years old. The book explains the significance of this discovery and its implications for our understanding of black holes and galaxy evolution.