My new book ‘Working the London Underground’ is out now. It covers how the original Tube lines were constructed 150 years ago, and how the network grew in the decades that followed, each time a new line was added. The book also covers how the London Underground is run, including a look at long-lost jobs on the network, and how it operates in the 21st century. The text is backed up with a wide selection of photos, including many from the London Transport Museum archive. Read more and buy from here.