With the multiple projects we work on at SumAll.org, we rely on amazing volunteers to assist us. This month, we'd like to highlight Peter Cook, a freelance data visualizer, consultant, and trainer. Peter was behind our recent project, the Syria Crisis Timeline Visualization. Based in Brighton, UK, Peter assisted us through designing an easier way to help the public perceive data from the Syria Crisis. Peter’s background is in graphics and computer aided design, some of his recent projects are the 10 visualisations of Wimbledon 2013 and What Makes Us Happy?.