FBI教你超级藏心术（FBI Teaches You the Super Thought Hiding）

In real life, there are too many people who are not able to hide themselves well. They are easily seen through and their thoughts are often known by others. Those who are not good at hiding easily expose themselves to others and thus fall into disadvantaged situations. While there are many other people who are good at observing others and are able to see through other peoples thoughts according a small action. This book teaches you the methods of hiding yourself with FBIs real cases.