The Rev. W. Awdry's Railway Map of the Island of Sodor was a Railway Series related publication featuring a map of Sodor.
- On the front cover of the 1958 edition, Percy is painted blue instead of green.
- Godred and Shane Dooiney are omitted from the 1976 edition despite being part of the Culdee Fell Railway.
- On the 1976 edition, Duke and Rusty are painted red, despite Duke being brown and Rusty being charcoal black in the Railway Series.