I think the book is terrible. The Villers Bocage account is about the worst I have ever read. The author has taken quotes from Wittmann's death on 8/8/44 and attributed them to 13/6/44- just one of many howlers. Will Fey's acount of Normandy has been swallowed whole. I note 3 references to 'the first and last tanks were knocked out trapping the others' and the usual 'Allied tanks milled/fled in panic'. I think the author simply read all he could find and made the mistake of using some very dodgy accounts.