Internet is full of knowledge. There are many professors who have shared their works online. I have listed a few books on Algebra and Related Mathematics in this article. I am not very serious, but I think these are very useful for Undergraduate and Graduate Students, including me.

1. Abstract Algebra OnLine by Prof. Beachy
2. Understanding Algebra by James Brennan
3. Abstract Algebra : Theory and Applications by Tom Judson
4. Elements of Abstract and Linear Algebra by E H Connell
5. Linear Algebra by Jim Hefferon
6. Elementary Linear Algebra by Keith Matthews
7. Linear Algebra, Infinite dimensions and Mapleby James Herod
8. Elementary Number Theory by William Stein
9. Abstract Algebra: The Basic Graduate Year, A Course in Algebraic Number Theory, and, A Course in Commutative Algebra are three ebooks by Robert Ash and are available here on his website.
10. A Course in Universal Algebra by Stanley Burris & H. P. Sankappanvar
11. An Introduction to the Theory of Numbers by Leo Moser
12. A Computational introduction to Number Theory and Algebra by Victor Shoup
13. Sets, Relations, Functions by Ivo Duentsch and Günther Gedigo
14. Group Theory by Pedrag Civitanovic
15. Linear & Multilinear Algebra by C C Wang & R M Bowen
16. Abelian Categories by Peter Freyd
17. Categories and Groupoids by P. J. Higgins
18. Lie Algebras by Prof. Sternberg

All books, except few are in Acrobat Portable Document Format. You may need acrobat pdf reader to read these. However, if you don’t have that- or hate pdf readers – try online pdf/ps reader at view.samurajdata.se.

This list is expandable. If you know any other book on Algebra which is available online for free, then please give a few seconds and put that into the Comment-Box below, with the link. (It supports HTML.)

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