George E Andrews is the Evan Pugh Professor of Mathematics at Pennsylvania. He is also the President of American Mathematical Society (AMS) during 2009 2011. George Andrews has been a world pioneer in partitions and q-series. His contributions include more than 250 scientific papers and several books on number theory and the theory of partitions. In 1976 he discovered Ramanujan's Lost Notebook. Besides giving the readers access to George Andrews' most important papers, the volume also provides his background commentary and comprehensive assessment.