Really good and very interesting.
Walter Murch is a film hero and this book goes some way to explain why. It tells in his own words how and why he works and is refreshing in that the writer talks about new technology in a positive light, despite being grounded in traditional methods.
Going in to detail about when and why we blink he takes this and talks about when to cut and how blinking so important. If the audeince blinks at the wrong time then you've lost them. ie Don't cut when the actor blinks - cut when the audeince blinks.
Stuff like that and lots more.
A modest book, jam packed with stuff to think about.
I think I'll edit my next film standing up - see if his advice helps my film.