"Flashback" is an exciting science fiction novel by author Daniel Keys. This book tells the story of a group of researchers who decide to test a new technology that allows for the reproduction of memories. However, when the main character tests this technology, he finds that his memories are not only reproduced, but also go beyond his control, transforming his relationship with reality. The book "Flashback" asks important questions about memory, identity and the impact of technology on human development. The author successfully combined scientific concepts with a tense plot that leaves the reader in suspense until the last page. This book will not only entertain you, but also make you think about how powerful our memories can be in our lives."