In 2017 it remains in print in several countries, in illustrated editions of about 144 pages, with 119 illustrations, plus small diagrams. For the original radio broadcasts the BBC published a booklet with 60 photographs of the buildings discussed (or plans etc.
In 2017 it is still being distributed in various nations, presented in illustrated versions with about 144 pages, including roughly 119 illustrations and smaller diagrams. The BBC also produced a photo collection for its initial radio transmissions, featuring approximately 60 pictures of the structures mentioned.