Running a business is psychologically strange. The feedback is delayed and noisy, the responsibility does not switch off, and there is nobody above you to tell you whether you are doing well. That combination breaks people who are perfectly good at the actual work.
This shelf is the part of the business bookshelf that deals with it. At its best it is practical: how to make decisions under real uncertainty, how to separate a bad outcome from a bad choice, how to keep going through the long flat stretch where nothing visible is happening.
At its worst it is the most hollow category in publishing — a single slogan, restated for two hundred pages, with anecdotes selected purely because they support it. The filter to apply is simple. If a book tells you what to believe but never what to do differently on Monday, put it down.
Useful when you are stuck; less useful when what you actually have is a cashflow problem that no amount of attitude will fix.