Linus Torvalds
The first of 12 drawings for the 2013 Open Source Calendar (Swimsuit Edition) – Drawn by Judith Carnaby:
Linus Torvalds, creator of the extremely popular Linux kernel, the best-known example of free and open source software, and the defining component of the Linux (or GNU/Linux, depending on who you talk to) operating system. Want to know how Linux is built?