http://www.mindtheproduct.com/2014/03/video-easy-ab-testing-fk-ups/
A/B testing like a pro
Where do people feel happy?
www.tylervigen.com
Charts art and science
http://www.slideshare.net/idigdata/data-visualization-best-practices-2013
http://www.slideshare.net/VanrajsinhBihola/data-visualization-technique-how-to-design-charts-and-graphs
http://flowingdata.comhttp://www.labnol.org/software/find-right-chart-type-for-your-data/6523/
How to lie with charts 101
NM.pl & (Percolate)
Strava app image
Co to jest Kwit