The Truth WIthin STatistics Hackdays were held as part of the 2018 Swiss Statistics Meeting. Developers, statisticans, designers, journalists, hackers and citizens of all backgrounds worked with open data on the subject of statistics and emotions, evidence based decision making and fake news. 9 teams submitted impressive, thought-provoking and impactful projects which you can browse here. To find out more about the Hackdays visit, follow us on Twitter @twist2018, and follow @SSS_SST18 for news from the conference.