I've always liked about the universe and planets and how the world was made, this is a fantastic explanation. I'm so excited to keep reading about this!

I really wonder if that was the whole book. 41 iPhone pages seems really small for such a famous theory. It's was pretty good tho. Worth my time.

There were sections where I had to look for a clearer summary of Einsteins theory, but overall the book as a delight.

Very easy to read. Explains the principles well.

Einstein's ideas are regarded as hard to understand. But Lorenz,his personal friend and collaborator, tells you they are not so hard, so why not give it a try? Get to know the concepts and main ideas of the most important and controversial theory of modern physics.

Good book but doesn't show his work it's another person writing his thought on his works

If your interested in Astronomy and the basic idea of gravity & relativity then I suggest you read this book before going into the never ending journey.