Yes, this is another one of those 'how to be an effective manager' books. No, this one is not the same as the rest. I often find management books to come from the perspective of 'me, the author'. They preach and like to talk about what's worked for them, and why they are great managers.
This book is different from the rest. This book spends the first chapters explaining the RESEARCH behind the opinion. Not once does the author says 'in my experience' or 'this worked for me, I'm great'. What the author does do is refer to the research that was done in many different organizations, sizes, industries, countries, etc. The author used an independent research firm to ask thousands of questions, and conduct hundreds of interviews. Then they analyzed the data. They found 12 questions that were accurate indicators of effective managers. Effective managers have the most engaged employees, lowest turnover, and highest output. This is not only a good read for current and aspiring mangers, but anyone who works on corporate culture and HR, or anyone who is curios about how some organizations thrive and others don't.