The book provides general information about rocket engines, describes the principles of their operation, provides characteristics and classification. Liquid propellant rocket engines and solid propellant engines are described, the prospects for the development of rocket engines are indicated. It can also be useful for everyone who wants to get acquainted with rocket engines and the prospects for their development. A book based on open print materials has been written; all factual and digital material, as well as data on fuels and engine development prospects are taken from foreign print.