Len Deighton

 

Thrillers and spies and war. Also a cook. Harry Palmer and the movies with Michael Caine: The Ipcress File, Funeral in Berlin, Billion Dollar Brain.

https://en.wikipedia.org/wiki/Len_Deighton

https://www.theguardian.com/books/2021/may/02/why-len-deightons-spy-stories-are-set-to-thrill-a-new-generation