I felt like this was not helpful at all. I didn't finish it because I just could tell it was not going to give me any useful information. All the author was doing was ragging on everyone who uses ANY aversive training methods and how horrible it is, etc, etc. Keeping your training positive and calm is important, of course, especially in situations where your dog is already stressed and anxious; but there IS a time and place when a dog needs to understand reasonably that an action is not okay. And this book just reeks of an author who believes dogs should be the ones in charge of the home. Being a confident, fair, yet kind leader to your dog will do much more for their anxiety and reactivity than hoping that they will stop barking if you beg them sweetly enough. Your own anxiety and lack of confidence/leadership is a big reason why your dog continues to be reactive, because either you lead them or they will lead you. ("If you already have your ideas on how to combat reactivity, why did you pick up this book?" you ask. Well, because I was curious about reading through a book that claims to solve all your reactivity woes with "proven techniques." Unfortunately that claim was very misleading.)
If you want a fantastic example of a dog trainer, look into Dog Bone Hunter on YouTube. He does focus on training hunting dogs, but pushes the importance of a strong and steady foundation; we have used his foundation methods to obedience train our Border-Aussie pup, and have had great success with her. He is fair and kind and a confident leader to his dogs.
All that being said, I wish the best of luck to everyone who is struggling with a reactive dog. It is easier said than done to not ooze anxiety when you come face to face with your dog's triggers, simply because you are dreading the inevitable reaction. We have to learn to control ourselves before we can hope to get our dogs under control, which is not an easy task for many of us- myself very much included. You are not alone and it is not hopeless. Your dog's behavior CAN improve with patience and persistence. I hope this reaches the right people.