At least part of this work or collection is under a free, libre and open license.

2013 Open Source Calendar

Featuring all your favourite Open Source Heroes and Heroines, these are some of the people who have done most to exemplify or further the cause of a more open, collaborative or more freedom-conscious approach to working, thinking and licensing.

https://web.archive.org/web/20141228154102/http://yearofopensource.net/2013-open-source-calendar-swimsuit-edition/

Donate $25 to get a PDF of the calendar; $60 to get a hardcopy.

Work

Licensing Creative Commons Attribution-ShareAlike

Grouping Art