Here is a book with a surprising title because it goes against the image we have of blacks whose creative capacity and achievements are limited to very specific areas: music, sport, dance. Do we know that the first open heart operation was performed by Dr. Daniel Hale Williams in 1893 in Chicago? The book thus reveals to us a new dimension of the black universe whose contribution to modern science and technology, although it has been obscured for too long, is no less appreciable.