In this book, the author uses rational and speculative language and rich grounding experimental cases to uncover the six puzzles and 28 rules of happiness: The trap of happiness: get rid of the smog of the soul. Positive power: save “unhappy” Workplace happiness: How to live an effective life. Interpersonal psychology: How to become a popular person. Find true love: Life is not an idol drama. Active parenting: Inject the king’s genes into children. The book also mentions the unique trick to deal with setbacks, the “five-shi theory”. Professor Peng Kaiping believes that by deliberately practicing these five simple behaviors, you can continue to get happiness from the little things in daily life.