The Mystery Book is a phycology book about attribution: a concept in social psychology addressing the processes by which individuals explain the causes of behavior and events; attribution theory is an umbrella term for various models that attempt to explain those processes (wikipedia).
The book created with “Mystery” as the main theme as phycology itself are a mystery, how other people can read and analyze one individual inner character just by seeing the outer appearance. Throughout the book the reader should think and solve some code and mystery before he/she could find the answers. Quotes also scattered throughout the book either to confuse and guide the reader to solve the mystery. The whole book use a retro style to create even more complex feeling about the mystery that buried.