From George, 11 August 2008:
I recently found a first edition copy of “The Expendable Spy”, a book which I remembered enjoying back when I was young (way back, I’m afraid) and am now in the middle of rereading it. It’s still just as enjoyable, mainly for the authenticity of its settings and the complexity of the plot. I was curious about your background, googled you, and came across your site. I thought you might enjoy knowing that people still look for your forty-some-year-old books and find pleasure in reading them. I’ll certainly have to sample your other books.
Reply from Jack: Thanks a bunch, George! I’m plain delighted that you enjoyed “The Expendable Spy” on both readings — long ago and recent.