"Tourists on Terra" is a science fiction novel by the famous writer Mack Reynolds, which tells the story of a group of tourists who go on a long-awaited trip to the planet Terra. Earth is the second planet from the Sun, which, according to researchers, is ideal for colonization. However, when tourists arrive on Terra, they will find that the planet hides many secrets and dangers. The author has created a unique world that impresses with its detail and ingenuity. Each character has their own story and motivation, which makes them realistic and interesting. Tourists on Terra is an exciting book of adventure, discovery and mystery that will keep readers on the edge of their seats until the last page.