Donald Knuth 2013-05-24-15.26.09

2013-05-24-15.19.452013-05-24-15.19.532013-05-24-15.26.092013-05-24-15.26.312013-05-24-15.32.552013-05-24-15.33.242013-05-24-15.34.05
2013-05-24-15.26.09

[ small | medium | large ]