Book excerpt: 50th Anniversary of original publication; this is a unique Paris guidebook from the late, great, architecture and travel writer Ian Nairn. Illustrated with the author's black and white snaps of the city, Nairn shows his eye for detail - whether it is stonework on an archway, shadows cast by a railing, or an empty chair in a Paris park, in this book which celebrates the City of Light. Nairn's Paris captures the city on the cusp of great changes and provides a glimpse of a city that is about to disappear. Here is an idiosyncratic and unpretentious portrait of the 'collective masterpiece' that is Paris. Introduced by writer and BBC presenter Andrew Hussey, author of the popular Paris: The Secret History. 'About one third of the book is discovery, in the sense that I came upon the sites by accident or by following a topographical hunch. There must be many more, and all you need for the search is the ability to turn off the main road, switch on your antennae and respond. Good luck.' - Ian Nairn