The book's mostly about the history of the astronomical breakthroughs such as Copernican Model of Universe, Accelerating Universe, Dark stuffs and energy, Black holes and quasars. A very little ideas from the author regarding the mapping and it's future scope in the epilogue. It's good to know both the facts and speculations.

Personally, I found this book very addictive. The author uses very simple yet catchy words that could inspire the readers to watch out for the sky. I've read outstanding books written by Carl Sagan, Neil deGrasse Tyson, and other contemporary science promoters and I'm proud to showcase this book among their works in my favourite shelf. After reading the inceptional chapters, It was too delicate that even I felt like joining Astronomy courses and seek an alternative career for me. Unlike other popular space science books, it has several moderate technical details of various methods involved in mapping the details. Totally loved it. Anyone comfortable with high school science can find this comfortable as well. Some mistakes though, especially at page 183 it was indicated that lithium is the seventh element. Overall a very good book inorder to feed the cosmic hunger within you and to have an esoteric, inexplicable feel of what is meant to be alive.