New book Psychology Grumpy is a sin Kakukawa Shinsho

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Psychology
Politics, Economy and Society
Kadokawa Shinsho / It is already the age of "duty" that good mood is now. Bad mind and body and the skill to say good-bye. Chronic bad mood not only eats self, but also lowers productivity of the whole workplace and becomes a source of trouble and harassment. It also mentions the new form of bad mood in the SNS age, and teaches you how to live smoothly in the present day by putting yourself and those around you in good mood.