Come for the price, stay for the quality

### Open-Source Textbooks

*** THIS PAGE IS NO LONGER MAINTAINED AS OF SEPTEMBER 2010 ***

Instead I am concentrating recommendations and examples within the undergraduate mathematics curriculum, so please visit the Open Math Curriculum page. If you are linking to this site, please use that page for a broad list, or link to linear.pugetsound.edu specifically for the Linear Algebra text. Thanks for your help publicizing open textbooks.

This page contains some links to similar open-source textbooks. Notice however that a book that is free to download, but with a copyright that reserves the author's rights, is not really free. For a book to have freedom, the copyright holder needs to grant the text additional freedoms through a license that makes these conditions explicit. For this reason, I have included some links to different licenses and essays on open-source.

#### Free Textbooks

- Abstract Algebra: Theory and Applications, by Thomas W. Judson.

LaTeX source distributed under the GNU Free Documentation License (GFDL). - Whitman Calculus, by David Guichard

An introductory calculus text. Distributed under a Creative Commons License (Attribution, Non-Commercial, Share Alike). - Vector Calculus, by Michael Corral

Third-semester calculus: vectors, functions of several variables, multiple integrals, line integrals. Distributed under the GNU Free Documentation License (GFDL). - Linear Algebra, by Jim Hefferon

An introductory linear algebra text. Distributed under both the GNU Free Documentation License (GFDL) and a Creative Commons License (Attribution, Share Alike). - A Problem Course in Mathematical Logic, by Stefan Bilaniuk.

LaTeX source distributed under the GNU Free Documentation License (GFDL). - Introduction to Programming Using Java, by David J. Eck.

Distributed under the GNU Free Documentation License (GFDL). - Programming Languages: Application and Interpretation, by Shriram Krishnamurthi

Distributed under a Creative Commons License (Attribution, Non-Commercial, Share Alike). - Introduction to Probability, by Charles M. Grinstead and J. Laurie Snell.

Distributed under the GNU General Public License (GPL). - OpenMathText.org, by David Santos and Alain Schremmer.

A variety of comprehensive lecture notes, many distributed under the Open Publication License (OPL). - Introduction to Economic Analysis, by R. Preston McAfee.

Distributed under a Creative Commons License (Attribution, Non-Commercial, Share Alike). - Calculus-Based Physics, by Jeff Schnick.

Distributed under a Creative Commons License (Attribution, Share Alike). - A First Course in Complex Analysis, by Matthias Beck and Gerald Marchesi

Free to use for educational purposes at institutions of higher learning, source available on request.

- Elements of Abstract and Linear Algebra, by Edwin H. Connell.

See Chapter 5 for linear algebra done at a higher level. Free to view, but copyrighted. - Light and Matter, Ben Crowell.

Free physics textbooks.

#### Freedom

Some thoughts on open-content, intellectual property, open-source software and books.- The Economy of Ideas An essay on intellectual property, copyright and digital media.
- The Cathedral and the Bazaar A collection of essays on open-source software.
- Free as in Freedom Richard Stallman's crusade for free software.
- Free Culture
Larry Lessig's latest on copyrights and creativity.

- Articles
by Ben Crowell on open-source textbook production and distribution.

- Open Knowledge Foundation Weblog, "Dead knowledge: why being explicit about openness matters"

#### Sources of Open-Content

- Textbook Revolution Careful capsule descriptions of free textbooks in many disciplines.
- The Assayer Reviews and catalog for free books.
- Online Mathematics Textbooks George Cain's selective list.
- Textbooks in Mathematics Alexandre Stefanov's comprehensive list.
- WikiEducator A site about creating free textbooks.
- Samizdat Press A collection of free texts in science.
- Global Text Project A free textbook inititative with a global outlook.
- Project Gutenberg One of the orginal promoters of distributing public domain texts.
- The Online Books Page 20,000 free books.
- The Book People Mailing List Traditional, moderated, email discussion list.
- Open Books Project O'Reilly's open-content books.
- Public Library of Science Freely available research articles.
- Magnatune Open-content record label.

#### Licensing Open-Content

- Free Software Foundation GNU licenses, popular for software projects.
- Creative Commons Licensing and promoting open-content.
- Free for Education An Australian licensing initiative.