Everything you wanted to know about abstract algebra, but were afraid to buy
This text is free to download, but if you are doing more than just browsing, then purchasing a print copy is less expensive than printing it on a laser printer, less expensive than a single copy (unbound) at a copy shop, and very close to prices charged by copy shops when ordering multiple copies at a discount. Before ordering, you might want to examine an evaluation copy.
NOTE (2015-08-23): Be certain to read the note below about changes in the 2015 Annual edition before purchasing an older hard copy, new or used.
A nicely printed and bound (hardback) copy of the 2016 Edition of AATA can be purchased for around $26. It is available at your favorite online retailer or by special order from your local or college bookstore. This is a service provided by Lon Mitchell of Orthogonal Publishing. The author, while supportive of this edition, is not involved directly in any way, including financially. The ISBN for the 2016 Edition is: 9781944325022.
A Note About Editions
There have been some discrepancies in numbering in earlier editions as the open source version has evolved and improved.
- The 2015 Edition has many non-trivial changes to numbers of theorems, examples, figures, etc. within each chapter. Chapter numbers are unchanged. We also intend that the numbering of the exercises remains unchanged (but instructors may wish to verify their existing problem lists).
- For the 2011 Edition, a chapter on normal subgroups and homomorphisms was split into two new chapters, affecting the numbering of later chapters.
- The 2009 print version lacks highlighting of some inline definitions.
- The orginal commercial version contained a Chapter 0, now numbering begins with Chapter 1.