Do you admire the phenomenal memory of intelligence officers? Are you surprised how they can notice all the little things and keep in their heads glimpses of the enemy’s maps and plans, thousands of names and numbers, legends, appearances and passwords? Now you can do this too: here is a unique book that reveals the secrets of memory training used in intelligence schools. In addition to theory and exercises for self-training, the book describes communication techniques from the arsenal of intelligence services: you will learn how to establish contacts and gain trust in strangers, persuade and evaluate the reliability of the data received. You will also master methods of self-organization, learn how to quickly restore strength and maintain high performance. A cross-cutting plot will help you immerse yourself in the spy atmosphere - a search case based on real events. You will become a full participant in the investigation, and along the way you will be able to train your attention, thinking and memory. The book is intended for everyone who has difficulty remembering, feels the need to develop mental abilities and wants to become more effective in communication, work and everyday life, learning to use the maximum capabilities of their brain.