The authors introduce the four key concepts: message, plot, characters, and conflict. There's a "conflict barometer" that could be useful.
Then the authors talk about ways to find raw material and process that information. There are a series of "tests": useful questions to develop and gauge your material to produce a core story.
The main strength of the book lies in the examples, which illustrate the final "product" over and over again.
The limitation of the book lies in the production of raw material. The book does have good ideas on where to look for raw stories, e.g. employees, products, leaders, but it doesn't say how generic ideas like the founding of the company can be made compelling. They instead suggest that the reader get stories from company people that are already good storytellers.
The other limitation of the book lies in the lack of failures. It shows how corporations succeeded in telling a core story, but it doesn't seem to show how corporations can fail to tell a core story, and how they resolved such problems. How do companies deal with the pitfalls that inevitably appear on the road to producing something of quality, which in this case is a core story?
However, such problems are not necessarily critical issues for the target audience. The book spends a considerable amount of the pages on the benefits of a story (which a more advanced reader might find redundant). For businesses that are just beginning to look at stories, this book will convince them that stories can be ways to catalyze outside interest. It is a great introductory book.
While the advanced reader may not gain much in terms of producing a raw story, he or she may gather a set of interesting core stories. An alternative title might be "how to find raw stories and process them into core business stories."
I wouldn't mind borrowing it again to see it again.