I hadn't seen either, I'll have to keep an eye open for one of these types of books. My collection is embaressingly small.
C: A couple of my treasure chests (and who said eBay isn't good) have been the purchase of a set of Air Enthusiast issues from the 1975-87 era, and a simliar purchase, Aeroplane Monthly 1975-1990 ... Especially the Air Enthusiast magazines (and their current incarncation, Air International, Air Enthusiast) highlighted "current" developments with 3-views, information etc.
Where else would I have found out about the various Boeing plans for a 727 follow up? What ended up being the 757 had, at a time, a t-tail ... the 767 was *almost* a 3-engined bird. There was a twin L-1011 in the plans ... on and on.
The airplanes that didn't make it are just as interesting as the ones that did. I have a soft spot for the Ahrens 404 (namely because it would have been built in Puerto Rico), a decent, robust design that didn't have the necessary capital behind it.
Then there are always the "Janes All the World's Aircraft" issues. (A Piper four engined commuter mini-airliner???) ...