At the moment Alex, Alan and myself are running a workshop on Design of the Business Model Book in London. Alan described the design process from research to completion and asks us very important questions. As these answers will have a big impact on Design of the book, we really appreciate your help...
1. Where do you think you will read the book? (eg beach, work, train, plane)
2. How will you use the book?
What would be nice considering is a light version of your book with all the essential elements (a kind of aggregation of the highlights we make when reading the book). Not an executive summary but a version where we have the essential ideas and practical example of how to use this knowledge practically.
Comparing this to HBR articles, I like the section "Idea in brief" and "Ideas in practice". This is very valuable as eventually the goal is to communicate your ideas and practical tools as well.