For those who might be interested in a book about doo wop which is more than just a history of the changing personnel of a group or groups, let me draw your attention to John Michael Runowicz's Forever Doo-wop, published in 2010. It examines how the music is perceived by different sides: the largely white audience who pay to see live acts; the increasingly elderly singers, still making a living from serving up their past - significantly fewer in number now in 2024, of course - and those in the middle who promote and make money from the enterprise.