This is an old and very practical book, from 1944 I think. I'm a pilot of limited experience (which means I have a few hundred hours of experience as a pilot, mostly on single engine aircraft and in VFR conditions -- I do have some experience on twin engine.)
This is a book that should be read at least two time -- preferably three I think, at least for those starting out in this hobby as non-professionals. It takes several rounds through the book to assimilate what's there. And it is fantastic.
I come from a physicist's point of view. This means that for all my life I've been immersed in theory but also in experimental results, as well. I had come into the whole idea of being a student pilot (before getting my license) with all these ideas of the theory side of things. I spent countless hours, decades ago, studying the old NACA (the name of NASA, years ago) on airfoil design. I examined thousand and thousands of different airfoil designs.
But when I was first put into a Cessna 150 and 152 for my first training experience, all that theoretical knowledge was of little value to me. I kept trying to think about flying the aircraft from these theoretical ideas. And it became very confusing.
The reality is that while theory is correct, the practice of flying well requires acquiring more practical, emergent ideas. This book reflects well these practical ideas and avoids getting overly mired in all the relative details that a physicist may prefer (orthogonal axes, for example, that make analysis work out well but really are far less important for someone at the controls of an aircraft.)
I would highly recommend this book to those haven't yet started their training at an airport, or who are earlier in their progress. Go through this book multiple times, until things sink in better. Then ask your instructor to work you through each of the various gaits indicated in the book -- put you into those positions (most of them, anyway) so that you can develop your skills quickly and early. The book serves well as a source of discussion with your instructor and in encouraging them to put you through these paces earlier than later.
I've been through ground school and through hundreds of hours of flight instructor training. And nothing in either of these gave me the vocabulary or the ideas that I needed in order to ask for better training at the time. The result is that I'm poorer for the experiences I've gained because I lacked the ability to ask for help from my instructors on the important gaits (the book uses that term) where I needed to improve.
It's cheap. It's valuable. If you plan to spend serious money on getting your VFR pilots license, then spend the time (over and over, 2 or 3 times at least) to read/listen to the book. It will go a long way when it comes to time where you interact with your flight instructor and ask for specific training in a variety of modes of operation of a light aircraft, whether single or twin engine.