“Trainees” is a story about the flight in space of the inspector general of the International Space Transport Administration Vladimir Yurkovsky and his friends Alexey Bykov, Mikhail Krutikov and Ivan Zhilin, familiar to readers from the books “The Land of Crimson Clouds” and “The Path to Amalthea”. The crew of the ship "Tahmasib" visits various corners of the solar system, meets with scientists involved in the development of Mars, revealing the secrets of gravity, and exploring cosmic rays. People almost the same as us, people of the beginning of the 21st century appear before the reader as alive with their hobbies and concerns, with their desire to make the world a better, more beautiful place.