Originally published in 1948 with a forward by Dr. Albert Einstein himself, THE UNIVERSE AND DR. EINSTEIN is a concise, lucid exposition of relativity theory which is comprehensible to almost any layman. Barnett often uses the same mental images that Einstein employed to originally develop relativity. This book is appropriate reading even for those with no background in physics. After more than 50 years, THE UNIVERSE AND DR. EINSTEIN remains required reading for every student and scientist seeking to unravel the complexity of Einstein's theories. It explains the answers that science offers to the puzzle of what exists, how and when.