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Immense in scale, clear throughout,
This review is from: Cosmos: The Story of Cosmic Evolution, Science and Civilisation (Paperback)
On reading the first few chapters, there are two main things to notice. Firstly, Sagan was an excellent writer. His effusive style is poetic, at times rhetorical and conjures up great images in the mind. The second thing to note is that he wasn't a very good historian. He uses quite a few anachronisms and at times his treatment of historical matters is rather too simplistic.
With that small critique aside, I can talk about the main substance of the book. There is no overarching narrative to the book, as Sagan jumps around quite a bit in his topics, but this does stabilise about half way into the book. This is, I think, a consequence of the chapters being based on individual episodes of the corresponding tv series.
For the most part, the book is dominated by the idea of space and what's in it. Sagan gives us a brief guide on a few of the planets in our solar system, as well as looking out beyond the realms where we have travelled into the rest of the galaxy and onto distant superclusters of galaxies. In all this, Sagan stays well away from any hard science. He is purely descriptive and his aim seems to be to evoke wonder, rather than head-scratching.
The scale of the work is about as big as anything that could be conceived, from the origins of the universe, to the origins of life, along with discussions of philosophy, religion and science in general. His ebullient style of writing is both engaging and awe-inspiring, encouraging the reader to consider his or her place in the whole cosmos.
Some elements of the book are definitely of its time, already outdated a little some 30 years later. The pall of the Cold War hangs low over the final chapter in which Sagan pleads for sense in the face of imminent nuclear war. He pleads for reason and rationality as necessary measures that will preserve humanity against the unthinking use of powerful technology that could destroy us.
His work is a classic and should be rightly regarded as such. Along with Richard Feynman and Stephen Hawking, Sagan was at the vanguard of popular science writing, a field which has flourished in the last few decades, taking science out of the preserve of the university departments and making it accessible to the average person on the street.