Widely acclaimed algebra text. This book is designed to give thereader insight into the power and beauty that accrues from a richinterplay between different areas of mathematics. The bookcarefully develops the theory of different algebraic structures,beginning from basic definitions to some in-depth results, usingnumerous examples and exercises to aid the reader's understanding.In this way, readers gain an appreciation for how mathematicalstructures and their interplay lead to powerful results andinsights in a number of different settings. * The emphasis throughout has been to motivate the introduction anddevelopment of important algebraic concepts using as many examplesas possible.