Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Totally original

This is a really fun book. It successfully manages to get across the massive amount of weirdness down in the smaller end of things. My sons love it. Some of the pictures are the best I've seen anywhere. A little bit of a pity it didn't go into bond angles and so organic chemistry (lack of space I guess), and, as another reviewer has noted, there are some weak places ... but I just love the feel of the book, the way the subjects have been handled, and, unlike so many 'popular' chemistry books, this one at least has a beautifully designed periodic table at the back! Really highly recommended for kids or for adults who need their science refreshing.