The book you have opened is unique: along with historical essays about the largest machine-building enterprises of the Mining Machines company, it contains topical issues of modern industrial engineering. The book is devoted to six enterprises of Ukraine and one Russian at once. These enterprises are united not only by work in the coal engineering industry, they are all part of one company - NPK Gorny Mashiny, the largest machine-building holding in the post-Soviet space. Donetskgormash, Druzhkovsky Machine-Building Plant, Gorlovsky Mashinostroitel, Sverdlovsk Machine-Building Plant, Donetsk Power Plant, Kamensky Machine-Building Plant and Krivorozhsky Mining Equipment Plant.