3.5 Stars.
After going through some generally known facts about Mr. Buffett's entrepreneurial spirit in his early years along with tidbits of Berkshire Hathaway Wiki-grade public domain matters, by a quarter of the book it becomes clear that the novel isn't about any special insights into the "money mind" of Mr. Buffett - who wasn't even interviewed for the book, but rather about the author's own dissertations on investing and financial markets, his personal concepts of what a "money mind" might be.
Mr. Hagstrom does segue back every now and then to Warren Buffett but more of an aside than as the focal topic, as he walks the reader through capital allocations, value vs. growth investing and applicable hybrids, financial ratios and valuations, intangibles, off-balance sheet valuations and the rise of e-commerce.
He does proffer some pretty deep and commendable background stuff as he touches on Waldo's essays (Ralph Waldo Emerson) on wealth and the money mind and takes Francis Bacon's empiricism juxtaposed against Rene Descartes rationalism with Immanuel Kant and his "Critique of Pure Reason" as the catalyst in between.
Quite interesting per se, if you're into these things.
But what I thought was bannered were Warren Buffett's thoughts, decision-making strategies and processes, to delve directly "inside the ultimate money mind" of the Oracle of Omaha and get to know what makes one of the greatest investors of all time tick, and not just be fed text book and lecture hall theoretical postulations by the author citing a whole bunch of soi-disant gurus, and, above all, be enticed to read a book through a bit of a bait and switch ruse by surreptitiously featuring Mr. Buffett's photo prominently on the cover.