Indeed, this book really brings together all that can interest an amateur astronomer ... and then some! From the infinitely small to the infinitely large, from particle physics to the expansion of the universe, all topics related to astronomy and cosmology are discussed. Additionally, the illustrations are all beauties and greatly help to a better understanding of the mechanisms that govern the universe. In summary, if you have only one book on the subject, it's this one! Moreover, the price has no relation to a volume of such quality. A purchase without hesitation.