An example of a Ken Follett book series is his "Century Trilogy" series. This trilogy consists of "Fall of Giants," "Winter of the World" and "Edge of Eternity."
Ken Follett is a Welsh author who specializes in writing historical novels as well as thrillers. He has written novels since 1974, and his combined works have sold more than 130 million copies all over the world. His other series, apart from the "Century Trilogy," include the "Apples Carstairs" series and the "Pillars of the Earth" series. He has also written more than 20 standalone books, many of which were international bestsellers.