Brian Dettmer, to coin a term, 'anatomises' books. Carving into the text, he reveals inner hidden systems - drawing correlations through and outside the pages rather than simply across. I am perhaps a bit late in stumbling across his work - however it is still stunning. It is reminiscent of a project I saw at the Bartlett a few years ago which I will endeavour to find and post here.
Dettmer's work also reminds me of Isaac Salazar's Book Origami Series, see here via Design Folio.