Ian Stewart's Galois Theory has been in print for 30 years. Resoundingly popular, it still serves its purpose very well, but mathematics education has changed considerably since 1973This edition brings the presentation in line with more modern approaches. While preserving and extending the most popular features of the previous editions, the author reorganized the material to place the concrete before the abstract. He also added more technical history, incorporated several newer proofs, and revived some classical topics. There is simply no more engaging, no more accessible, no more outstanding introduction to the intriguing concepts of abstract algebra than Galois Theory.