- p31: Definition 2.9 is incorrectly attributed to "Bradford, Butler and Chmutov [8]". The correct attribution is "Chmutov [16]".

- p59: Proposition 3.27 is incorrect. In particular Wilson’s Theorem is misstated. It should read “If M is an orientable regular map, then its underlying graph is bipartite iff P(M) is also orientable.”