"Portable Star" is a science fiction book by the famous Ukrainian writer Oleksiy Kalugin. In this exciting science fiction novel, readers are taken on a journey to a future where technology is firmly infused into people's everyday lives. In this book, the author successfully combined science fiction with philosophy, highlighting complex issues of morality, technology, and interpersonal relationships. "Portable Star" not only captivates with its storyline, but also leaves its readers with a lot of room for thought and discussion. This book is sure to appeal to fans of science fiction and those interested in advanced technology and the development of human society.