PositiveThe Wall Street Journal...a book of connections and digressions, meticulous in scholarship and erudite in tone, that may be a frustrating read for anyone simply wanting to know what Einstein actually did during those 16 months ... The result is a nonlinear narrative of historical dot-joining, dense in content and admirable in academic rigor, that will doubtless become an essential reference for anyone researching what has usually been seen as a minor chapter in Einstein’s life.