Contemporary Abstract Algebra

Many reviewers praise this textbook as an excellent and foundational introduction to abstract algebra, covering groups, rings, and fields at a senior undergraduate level. It is frequently described as accurate, well-written, and tightly organized, with a reader-friendly progression of concepts. The book is rich with examples, which many find crucial for understanding abstract topics, and offers a good variety of exercises, from easy to more challenging. Specific strengths highlighted include its treatment of factor groups, Lagrange's Theorem, Sylow's Theorems, and the fundamental theorem of finite abelian groups. Numerous readers found the book to be a rewarding intellectual journey, with some even crediting it as the reason they pursued mathematics, appreciating its ability to open their minds to the possibilities of the subject. The inclusion of historical trivia and clear notation also contributes to its appeal.

Despite its strengths, several criticisms are raised. Some reviewers desired greater depth and detail in certain areas, such as symmetry groups, and found that proofs could be too terse, requiring extra effort to fill conceptual gaps. A recurring complaint is the book's predominantly abstract approach, with many feeling it fails to adequately demonstrate the practical applications or real-world relevance of algebraic structures, sometimes giving it a "game-like" or "intellectual showboating" feel. The attempts to humanize the text with quotes and biographies are perceived by some as condescending or out of place for a serious academic work. Structural issues like defining terms within prose rather than clear call-outs, a weak index, and occasionally verbose or shallow coverage of topics like rings and fields are also noted. Furthermore, the high price point of the book is a significant point of contention for many, who believe more affordable or even free alternatives exist that offer similar or better pedagogical value.

In summary, this book is widely regarded as a solid and competent textbook, often considered a classic and a favorite among undergraduate algebra resources. While not without its flaws, particularly regarding depth in some areas and its perceived lack of practical applications, its clear explanations, abundant exercises, and detailed examples make it a highly effective tool for learning abstract algebra. It comes recommended for senior undergraduate students in mathematics or anyone seeking a well-structured introduction to the subject with a good pedagogical approach. It is especially suited for those who appreciate a wealth of practice problems and a foundational, concept-driven understanding, and can serve well as a primary text or a valuable companion to other resources.