BY GREAT CENTRAL STATION AND OTHER LONDON UNDERGROUND SITES is a brief introduction to London’s Tube System, told largely in pictures. A short history is followed by examples of architecture; typical signage, including the history of the world-famous Tube map; unusual features: (when is a house not a house? When it’s a facade concealing an Underground line), and renamed stations which still, on the underground tiled walls, retain their old name: for example Gillespie Road became Arsenal, after the football team who play there; and abandoned: stations which have been closed and converted or abandoned but still retain the distinctive red tiling of designer Leslie Green, and all of which are easy to visit. This is a taste of the Underground: brief but fascinating. Best viewed in colour on a larger screen. LENGTH: this booklet, in A5 paperback format, occupies 28 pages; it contains 37 images (34 in full colour), and it is largely through them, rather than text, that this concise introduction operates.