I ended up with a copy of this, instead of the "Extraordinary Popular Delusions and the Madness of Crowds" I wanted to read. So it's not really what I was looking for. I decided to finish this, and then put "Extraordinary Delusions" on my 'to read' list for later.
Martin S. Fridson takes the three case studies at the beginning of "Extraordinary Delusions" and reads them, and gives a long intro of, and then reads "Confusión de Confusiones".
This book shows how the behaviour of men remains largely the same now as it was then. The financial bubble has a long history. His telling of tulip mania was interesting, to that point.
While the historical examples were interesting to learn about, I found the writing of this book struggling to hold my attention and interest. It is very dry and verbose.