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I want to correct just two of the inaccuracies in Christopher Bray's review of my book on Dad's Army (Books, 22 October). First: I am not a lecturer at Cambridge. Second, it is misleading of him to style as a "high-class cuts job" a book that draws on previously unpublished material from the archives and original interviews with the programme-makers and surviving actors.

Graham McCann
Via e-mail