Acknowledgements

I have my father to thank for fostering my interest in the Underground, and my wider family and friends for indulging me on endless boring (for them) trips to obscure parts of London.

Much of my knowledge comes from the variety of interesting literature published over the years. Specifically I would recommend almost anything under the author/editorship of (in no particular order) Brian Hardy, Doug Rose, Alan A Jackson, J Graeme Bruce, Desmond Croome, Piers Connor, Mike Horne, John R Day, Bob Greenaway.

More recently we have the internet to share our knowledge and observations on a professional and amateur level, and to the right you'll find an expanding list of interesting and useful sites.