Mackenzie > Status Update

I really must finish "Tinker, Tailor, Soldier, Spy" (and sadly I can't remember where I put my copy of the book at the moment). Gary Oldman and Benedict Cumberbatch said that the book was The One Source Of Information for everything that has to do with the characters they play in TTSS movie. In order for me to be able to see what they mean, I need to see the characters as they are in the book!