Annesley Bupp had devoted himself to literature for two years before his first article on trams was written. This was called Voltage, was highly technical, and convinced every editor to whom it was sent (and by whom it was returned) that the author knew his subject thoroughly. So when he followed it up with How to be a Tram Conductor, he had the satisfaction not only of seeing it in print within a week, but of reading an editorial reference to himself as "the noted expert on our overhead system." Two other articles in the same paper—Some Curious Tram Accidents and Tram or Bus: Which?— established his position.

Once recognized as the authority on trams, Bupp was never at a loss for a subject. In the first place there were certain articles, such as Tramways in 1904, Progress of Tramway Construction in the Past Year, Tramway Inventions of the Last Twelvemonth, and The Tram: Its Future in 1905, which flowed annually from his pen. From time to time there would arise the occasion for the topical article on trams—Trams as Army Transports and How our Trams fared during the Recent Snow, to give two obvious examples. And always there was a market for such staple articles as Trams in Fiction….