Open problems in discrete geometry

Discrete geometry is an area with a more than 150-year history, but it still has a lot of open questions. Problems of discrete geometry often have simple formulations, understandable even to high school students. At the same time, part of the issues is extremely difficult, and to solve them it is required to immerse yourself in other areas of mathematics, at the same time, a student or high school student can find many problems when lucky.
The book contains more than 500 open problems, many of which can be understood without prior preparation. The book is divided into independent chapters, each of which is dedicated to one of the areas of discrete geometry.
In addition to the formulations of open problems, the context of their occurrence and the most important achievements are described.
The book is intended for mathematicians, graduate students, students and all those who love beautiful mathematical tasks