This book is mindblowing! Thank you Dave for the personal attention you gave me when I had questions about the assessment. I have an iPhone and use BOOKS or Google for my audiobook purchases. This is one book I know I will be revisiting again and again. Learning about and understanding co-workers is vital to better communication and this book lays it out in the simplest form. Now I can identify their traits and understand the roadblocks when I need to communicate ideas and, request feedback. We have different styles and I am ok with that!! What a great book.