All the adventures of Electronics in one book! Who doesn’t know Electronics and his best friend Seryozhka Syroezhkin! And probably many are familiar with Ressy - the Rare Electronic Dog. But it all started with the fact that Professor Gromov invented an electronic boy who, quite by chance, met his living double. And since then, Elektronik and Syroezhkin have become inseparable friends. What amazing adventures happened to them! The friends took part in saving the whale Nekton and the white tiger, inspired Seryozhka’s classmates to become “ordinary geniuses,” and developed the “Spaceship Earth” project. And what was the cost of one operation to save Ressi from the hands of villains who wanted to use her unique qualities to their advantage! These and other exciting adventures of Electronics, Seryozhka Syroezhkin and their friends are told in four fantastic stories that are included in the book.