Written by a world expert in observational cosmology, this is the only introductory text on cosmology aimed at an undergraduate level. This highly popular book has been revised and updated and is now in its third edition. The author shows how different parts of the electromagnetic spectrum, from radio waves to gamma-rays, have contributed to our picture of the universe. This new edition includes rival theories of the universe as well as the tests which they can be subjected and recent results of such tests. Another special feature of this edition is the updated list of twenty current controversies in cosmology today.
I think this book more appropriate as a summary / review / study guide. Although now 20 years old, I think it would be good for that purpose. The author compiles a great range of equations applying to different concepts, and it is concise in its narrative. I do not recommend it, however, for a first dive into cosmology.