Hale's book, Mallard - How the Blue Streak broke the World Speed Record, also became a popular best seller and was first released in paperback by Aurum Press in May 2008 to coincide with the 70th anniversary of the speed record for steam locomotives held by LNER Class A4 4468 Mallard. The book was reprinted and published in July 2013 as a specially updated version for the 75th anniversary of Mallard breaking the world speed record on 3 July 1938, by publishers Aurum Press. An updated book was officially re-launched at the NRM in York on 3 July 2013 as part of the Great Gathering commemorations. Hale also produced and published a new railway history book - Mallard, the Railway Marvel that Beat the World in July 2018 to help commemorate the 80th anniversary of Mallard winning the world speed record.
