I know Ralph Leighton personally, and Gus is right. In fact, the same goes for The Feynman Lectures on Physics: Feynman gave the lectures, and other people took the transcripts and turned them into book.† This was harder than anyone expected it to be.
†I served as Caltech's editor for The Feynman Lectures on Physics: The Definitive and Extended Edition, which came out in 2005.
Comments
I know Ralph Leighton personally, and Gus is right. In fact, the same goes for The Feynman Lectures on Physics: Feynman gave the lectures, and other people took the transcripts and turned them into book.† This was harder than anyone expected it to be.
†I served as Caltech's editor for The Feynman Lectures on Physics: The Definitive and Extended Edition, which came out in 2005.