Why did I love this book?
Espionage at the beginning of the cold war was relationship- and intellect-driven. John le Carré (a.k.a. David Cornwell), who worked for both MI5 and MI6, accurately portrayed the environment in which operatives put their lives and sources at risk in service of their country. I find this novel interesting because it is in stark contrast to contemporary spy thrillers that typically include advanced technology and sometimes far-fetched plot twists.