His face is one of the most recognisable in history. His name is shorthand for 'genius'. His fame is inextricable from his person. Today, he's a figurehead as much as a man, symbolic of things larger than himself: of scientific progress, of the human mind, even of the age. But who was Einstein really? Samuel Graydon tackles this giant of intellect by breaking Einstein's life down into 99 particles, through which he explores Einstein's agglomeration of selves, contradictory as much as cohesive. Ranging from extracts of Einstein's fascinating letters to his scientific theories to his romantic relationships to his thoughts on the historical moment, Graydon explores the mosaic of Einstein.