Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Diana book that's really worth reading

What I particularly like about this book is that it destroys the whole 'Diana was mad' thesis (which you'll find, for instance, in Sally Bedell Smith's book - which I found silly and over the top.) This one explains, in detail that I found amazing, just how the whole mental health smear started. There's plenty of evidence here that Diana was perfectly sane and happy before she married into 'that family.' And - unlike many Diana books I've looked at - this does try not to take sides. Diana herself comes in for a lot of criticism, especially in the last few years of her life. But overall you do get a real sense of the pressures she was under and the quite magical things she did sometimes, right up to the end of her life. The landmine section is very touching. I'd recommend this book, in fact, to anyone interested in finding out about the real Diana rather than the 'spun' Diana.