This volume follows in the fine footsteps of others in this series. A concise but comprehensive introduction by Paul Laxton of Liverpool University is followed by forty double-A4 sided pages reprinting the map in its entirety. A full place-name index brings up the rear.
This is a reprint of the third (1813) of the four editions of Horwood's map. Unfortunately it is reproduced in this volume at half the original scale, so it is sometimes necessary to refer to a magnifying glass for some of the more intricate detail. But as the introduction makes clear, "[It] is one of the most richly detailed maps of London ever produced, and one of the largest cartographic ventures in Britain before the age of the Ordnance Survey map."
Paul Laxton provides some background biographical information about Horwood, of whom we know very little. Laxton also points out that Horwood's map, as well as being subscribed to by the great and the good, was also one of the first to be sponsored commercially, in this instance by the Phoenix Fire Office of Lombard Street.
Details of changes in the London landscape are given. Indeed, it was the radical effect of some of these changes that necessitated the revisions of further editions. These included John Nash's work in the West End ("The Regent's park depicted here on the 1813 edition is quite different in many respects from the park that actually took shape"), the new bridges over the Thames, and the construction of the new docks below the Pool of London. The first edition of Horwood's map had only eighteen acres of dock; this third edition had almost 180 acres.
The introduction does not fight shy of the map's imperfections, but instead places them in context. "The sheer detail [on the map], for all that it is idiosyncratic, provides an endless source of information for the topographer and impresses the student of cartography". You too will be impressed.
A minor gripe: the introduction should be double-columned across the A4 page.