Kaisha Shikihō (Company Handbook) 2022, 4th Edition. Although it's from the past, the fact that current companies still exist is thanks to their past performance. In fact, as a smart person, you've probably already realized that current stock prices are based on past events. This Shikihō explains in detail the reasons behind the fluctuations in stock prices at that time. This book is highly recommended for those who are feeling nervous about daily stock prices. It's a book that I especially recommend to those looking for collections or specific articles.