One of the library’s maps is a really interesting rendering of London that includes important sociological information that might not otherwise be recorded.
For example, gay cruising areas on Hampstead Heath.
This map is fairly precise in recording that the
area of gay activity is
on the West Heath,
not on the East Heath or the South Heath.
And I can’t see Ordnance Survey mapping that.”
Peter Barber, head of map collections at the British Library,
quoted in Maps - the new rock’n’roll in the Telegraph.
(via blech)