The book contains recordings of lectures on elementary geometry, read by the author at the Faculty of Mathematics of the Moscow State University . Lenin . The lectures describe the classical results of elementary geometry of the plane, starting with the theorems of Pythagoras, sinuses and cosines, and ending with the most important achievements of elementary geometry of the XIX XX centuries, the theorems of Poncelet, Morley, Feuerbach and others. The presentation is carried out in the traditional school "synthetic" language, much attention is paid to the analysis of examples of the application of the presented results in solving various problems, from school to the Olympics. The book is intended for students of pedagogical specialties studying the course of elementary geometry, schoolchildren and high school teachers, as well as for lovers of geometry. ;Griff:Recommended by the UMO for the specialties of pedagogical education as a teaching aid for students of higher educational institutions studying in the specialty 050201. 65 Mathematics