Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A very good primer

Origins is a very good primer on cosmology and astronomy for the lay reader. One of its strong points is its sweeping scope, from the origins of the universe down to the origins of life on Earth and the search for extraterrestrial civilizations. The book has its drawbacks. Some of the early chapters can be difficult to grasp; perhaps the authors could have explained some concepts more clearly, although to be fair, some of the ideas of cosmology (e.g., dark energy, antimatter) are just plain difficult to wrap one’s head around. There are also some places where the text shifts focus between topics abruptly, making it more difficult for readers to follow. Nevertheless, Origins is a fascinating overview of the nature of the universe and our place in it, and it achieves what all good science books do: it makes the reader what to learn more.