I feel like I am going through the duck test now as the hard cover version of my book is being assembled. I asked my Wiley production supervisor if she could send me a sample of the layout design and she kindly sent me a few pages.
Fonts: Blumner MTStd, Minion Pro
and Ocean Sans
Two observations came to mind when studying the layout: It will be easy to flip through my book to find specific information, which has always been a must-have requirement. Also, the templated examples are shown exactly as they were created during big change projects, which reflects the experience-based, practical nature of my book.
The cover is the final element of the design phase. As long as it looks like a business book (the duck) then my book will be in good shape.