I read a long, and largely favourable review (by Arthur Freeman) in the TLS recently of The Oxford Companion to the Book, edited by Michael F Suarez SJ and H R Woudhuysen, but building on contributions by hundreds of experts. It is not a cheap offering, at a mere £195, but it does offer what sounds to be a fascinating and comprehensive overview of the world of books in its widest sense, covering a monstrous 1,408 pages.
The review covers the volumes very thoroughly, citing excellence and the occasional quibble, and ends:
... this is a very healthy matrix, conceived and executed as well as one could expect from so distinguished a body of collaborators ... it will prove a godsend to challenged librarians, and to teachers of classes on any aspect of "the Book", and a rich lucky dip for the general reader.
I suspect I will not be buying it for myself, though I am surely tempted, but I will certainly be reading large chunks of it when it appears in the London Library.