Philippe Margotin has written numerous books on music, including biographies of U2 and Radiohead, as well as All the Songs: The Story Behind Every Beatles Release and Bob Dylan All the Songs: The Story Behind Every Track. He lives in Paris.<br> <br> Jean-Michel Guesdon, a musician, composer, and sound engineer, who wrote with Philippe Margotin All the Songs: The Story Behind Every Beatles Release and Bob Dylan All the Songs: The Story Behind Every Track. He lives in Paris.