Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A friend of mine just read McEwan's latest, Saturday...

...and, coincidentally, I was already on page 35 of McEwan's Booker Prize-winner, Amsterdam. I haven't yet read Saturday. I haven't even gotten into Atonement yet (which has gobbled up a little of my time with two false-start attempts - just haven't been in the right mood yet, but that day will come). But I have such glowing memories of The Child in Time and Enduring Love (one of my all-time favorite books), that I decided to tackle another McEwan "brief" novel. Glad I did. Even in its spare vision and mechanical structure, beautiful machine that it is, Amsterdam brought me a lot of reading happiness. But anyone who is going to touch this one needs to know that it's a very dry comedy at heart. I own the original British hardcover edition, which has a cover illustration of a 19th-century duel. That artwork perfectly establishes the tone - something the silly photograph on the new paperback edition does not.