1. HIGHLIGHTS IN THE DEVELOPMENT OF LASER 2.OPTICAL RESONATORS 3.LINE SHAPES AND THRESHOLD CONDITION OF OSCILLATION 4.GAS LASERS 5.SOLID STATE LASER 6.SEMI-CONDUCTOR LASERS 7.DYE LASER 8.NON LINEAR OPTICS 9.FAR ULTRAVIOLET AND X-RAY LASER 10.THEORY OF LASER 11.APPLICATIONS OF LASERS