"Black Hole Blues" is a book by physicist Janna Levin that explores the nature of black holes and the quest to detect gravitational waves. It delves into the scientific journey that led to the groundbreaking discovery of these waves, which are ripples in spacetime caused by massive cosmic events. The narrative intertwines the lives of scientists, including Albert Einstein and LIGO researchers, highlighting their challenges and triumphs. Levin explains complex concepts in an accessible way, making the science behind black holes and gravitational waves understandable to a general audience.