If you want the "more than a nutshell, but less than a book" version, Piketty & co have two journal articles that cover the main historical data analysis in the

If you want the "more than a nutshell, but less than a book" version, Piketty & co have two journal articles that cover the main historical data analysis in the book: http://gabriel-zucman.eu/files/PikettyZucman2014QJE.pdf http://gabriel-zucman.eu/files/PikettyZucman2014QJE.pdf http://gabriel-zucman.eu/files/PikettyZucman2014HID.pdf http://gabriel-zucman.eu/files/PikettyZucman2014HID.pdf