Ask HN: does everything known by Google engineers exist in books?

not just Google, but any great company with really good engineers, is everything they know (i don't mean about their products, i mean their knowledge as developers) anyone can find it in books or any other material. i just sometimes feel that they have some kind of knowledge above everyone else, and you can't find it except by learning it directly from them. for example: building high scale service. where you can learn to build something like that? and to be good as google's?