Telegraph Railway Codes 1905–1946 by Deborah Susman showcases railway telegraph codes from the UK, America, Australia and the former British Empire, revealing the language used in the day-to-day operations of railways during the first half of the 20th century.

Covering subjects including signalling, train working, accidents, weather, livestock, lost property and strikes, the book contains a concise and fascinating look at the (sometimes peculiar) messages used by railway staff.