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 this publication remains accessible in several countries, presented in illustrated editions with around 144 pages, accompanied by roughly 119 illustrations and small diagrams. For its original radio broadcasts, the BBC released a photo album containing about 60 images of the buildings discussed.