Having formerly worked in the auto industry, I’ve been exposed to 8D for decades. Expected the book to simply be a review of what I already knew. Instead the author has added some fundamental components that cause people to subvert the poor thinking processes 8D is intended to help overcome, such as relying on previous experience, not understanding what qualifies as objective evidence, and the ability to think reflectively (especially when it comes to cause & effect relationships). This book is a worthwhile addition to the field of problem solving, especially for those who must follow the 8D process (versus just seeing it as a report form to fill in).