As featured in
The Bookseller, Jan 23

"It is an interesting look behind the curtain of secrecy that was drawn over Bletchley Park and those who worked there."
The Armourer, May 2021

The Forgotten Giant of Bletchley Park by Harold Liberty is the story of John Tilman. The book is very well researched and very well put together... the story was very interesting and the real life dramas were very intriguing.
NetGalley, Leigh Ann Gregoire

As featured in: 'Daughters reveal how they only learned that their mother was a secret Bletchley Park codebreaker who helped steal Hitler's biggest war secrets after she died aged 89' Full article available at: https://www.dailymail.co.uk/news/article-10344189/Daughters-learn-late-mother-Bletchley-Park-codebreaker-stole-Hitlers-war-secrets.html
Mail Online

A very worthy look at code breaking activities.
The Armourer, January 2018