Harleyford Aviation Books

Does anyone have a full listing of the Harleyford Aviation publications? This is a series of British airplane books (now out of print?)that often had 3-views of interesting airplanes. A web site would be helpful also if you know of one.

Cheers...
David

I did a Google search for "Harleyford Aviation publications", and found a bunch of websites for collectible books on aviation. Don't spend it all in one place... Steve