A week ago Routledge published a great new book on “LEGO Studies: Examining the Building Blocks of a Transmedial Phenomenon”, edited by Mark J.P. Wolf. There are a couple of interesting chapters on using for creativity and thinking exercises – including LEGO SERIOUS PLAY (a chapter by David Gauntlett) and on LEGO brick usage in classrooms.
Might be an interesting addition to your LEGO SERIOUS PLAY library.