Interesting. This is where our individual needs drive our usage. When I
think of a reference book, I think of very quickly being able to find a
place in the book that explains something. VB/VBA Nutshell, being organized
in alphabetical order kind of like a dictionary, enables that. It also has
"perfect binding" (at least my old copy does), where it lays flat on my desk
and *stays put* when I am reading and typing. The Wrox books don't. They
require 2 hands to hold, look for a page, hold it open with elbows and
hopefully not crack the spine. Actually I ended up cracking the spines of
both of them through normal usage. My estimation of what makes a good book
includes construction, indexing, page notations, font, paper quality, etc.
As well as writing.
Guess the OP's going to have to see what works for him!