The Map of Knowledge'An epic treasure hunt into the highways and byways of stored knowledge across faiths and continents.' John Agard, poet and playwright In The Map of Knowledge Violet Moller traces the journey taken by the ideas of three of the greatest scientists of antiquity Euclid, Galen and Ptolemy through seven cities and over a thousand years. In it, we follow them from sixth century Alexandria to ninth century Baghdad, from Muslim Cordoba to Catholic Toledo,