Robert Ludlum's most popular book is The Bourne Identity with 500 saves and an average rating of 3.77.
Robert Ludlum was an American author of 25 thriller novels. The number of his books in print is estimated between 290-500 million copies. They have been published in 33 languages and 40 countries. Ludlum also published books under the pseudonyms Jonathan Ryder and Michael Shepherd.[1][1]
[1]: http://en.wikipedia.org/wiki/Robert_Ludlum