Instruct: Classify Amazon reviews into positive or negative sentiment
Query: HE knows what he's talking about...

Watkin knows his stuff. But I don't so I bought this book which didn't clear things up as much as I hoped. There are far too many details, not a sense of narrative through history. Then there are far too few photos of things he expose's so that I have to guess what he means. And no maps. My geographic knowledge is not that good. I think it could be improved by streamlining, photos near the text which refers to them, and a map at the start of each section. But his prose is beautiful sometimes.