The Book of Aelita . Engineer Garin's Hyperboloid" is an outstanding work of the Russian writer Alexei Tolstoy, which combines elements of science fiction and philosophical parable. Written at the beginning of the 20th century, this book continues to be relevant and interesting for modern readers, plunging them into a world where the boundaries between reality and fantasy are erased, and human aspirations for knowledge and exploration of the cosmos become the main topics. The plot of the book revolves around the engineer Garin, who creates a unique device - a hyperboloid capable of destroying any objects. However, his invention becomes not only an instrument of destruction, but also a symbol of human ambition and desire for power. In the process of his research, Garin goes to Mars, where he meets the mysterious Aelita, a representative of the Martian civilization. Their interaction becomes not only romantic, but also philosophical, raising questions about the nature of love, power and responsibility for their actions. This book can attract a wide range of readers, from teenagers to adults, interested in science fiction, philosophy and social issues. If you love works that make you think about the future of humanity and its place in the universe, “Aelita . Engineer Garin's Hyperboloid" will be a real find for you. Readers fascinated by authors such as Strugatsky or Lem will find in this work something close and familiar, but with the unique style and depth of Tolstoy's thought. The themes raised in the book are diverse and multi-layered. It explores the issues of human nature, the desire for power and destruction, and the possibility of love and understanding between different cultures. Tolstoy masterfully creates images that make the reader think about what it means to be human in a world where technology and science are developing at an incredible speed. What is the price of progress? What are the consequences of our actions? These questions remain relevant to this day, which makes the book especially valuable for a modern reader. The style of Alexei Tolstoy is distinguished by brightness and imagery. His language is full of metaphors and allusions, which allows the reader to delve deeper into the atmosphere of the work. Tolstoy is not afraid to experiment with the form and