"I make no pretence of having withheld from the reader difficulties which are inherent to the subject. On the other hand, I have purposely treated the empirical physical foundations of the theory in a "step-motherly" fashion, so that readers may not feel like the wanderer who was unable to see the forest for the trees." A layman's introduction to Einstein's ideas, Relativity gives readers an insight into the ideas of one of the best known - and one of the most influential - scientists in history. The ideas explained herein turned Einstein into a cultural icon, earned him a Nobel Prize and revolutionised modern physics. Few ideas in history can claim to have had such a scientific and cultural impact on human life.