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I'm giving it a 5 because it is a thorough resource and it's not too difficult to follow. I like the language and approach in this book vs Damodarans, although I like studying his content too.
I took business as my undergrad over 10 years ago, haven't been studying anything related since then. With that as my base, I'm able to understand and apply the content in this book with a moderate effort- there's a lot of nuance and relating the terminology used from one source is often very different from the terminology in other sources.
A lot of specifics are included, I'm mainly interested in the value of businesses for investment purposes. For that, this is quite comprehensive, it explains how mainly growth, return on invested capital and free cash flow drive the future success of an enterprise. Many methods are included to elaborate on these elements and how to use them to calculate a businesses value.
I do wish the book was streamlined a bit better. I find myself flipping all throughout the book for content I'd expect to see more grouped in one area.
Bottom line it is a solid book/resource on understanding and applying valuation principles to businesses.