Once the largest tramway network in the British Isles, London's tramways had belonged to a range of operators until the London Passenger Transport Board was created in July 1933, and this resulted in a great variety of tramcars being operated in the Metropolis. This is one of four volumes to cover the history of electric tramcar operation in the city, concentrating on routes to the north and north-west of the River Thames. This area was dominated by the Metropolitan Electric Tramways and was largely converted to trolleybus operation during the 1930s.

Locations featured include: