| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 2010 | 978-0-9831592-0-9 | Richard Stallman | Free Software Free Society, 2nd Edition |
| '' | 978-0-9831592-1-6 | Sam Williams · 2nd edition revisions by Richard Stallman | Free as in Freedom (2.0) |
| 2011 | 978-0-9831592-3-0 | Richard Stallman · Roland Pesch · et al Stan Shebs | Debugging with GDB: The GNU source-level debugger (GNU manuals) |