Big decisions require high-level insights. Whether managing a pandemic, or rearranging national resources to help your society grow, having good data is a must. That is why the United Nations Committee of Experts on Big Data and Data Science for Official Statistics (UN CEBD) is launching five new handbooks for the use of mobile phone data in different statistical domains. The handbooks will be presented at Expo 2020 in Dubai on 26 January at the “Bringing Big Data and Data Science Close to Home” event.