Historians, sociologists, and those interested in tracing the history of the Holocaust may benefit from Mapping the Lives, a platform that serves as "a central memorial for the persecuted in Europe [from] 1933-1945." Through interactive street maps that memorialize victims of the Nazi Regime's persecution, the resource goes beyond traditional "memorial book[s]" to reclaim space for the lives that were lost. In doing so, they show a deeper picture of the neighborhoods--down to a street address--impacted by the Holocaust. The creators recommend that users read the Mapping the Lives User Guide (accessible by clicking the box in the top left corner and selecting User Guide) before diving into the database. This guide defines some key terms, explains how best to navigate the site, and links to a page on the data source (the 1939 German Minority Census) that also contains a 2014 TED talk from Roderick Miller introducing Mapping the Lives. On the Home page visitors can navigate the map itself, beginning at a macro-level to examine the country-wide impact of the Holocaust, or zooming in to understand how this tragedy impacted individual cities and neighborhoods. In addition to scrolling the map, readers can search by name, street, and city by entering information into the Search box at the top left, or conduct an Advanced Search (linked at the bottom of the Search box). Mapping the Lives is an extension of Tracing the Past, a non-profit organization seeking to bring the "far-removed past [of the Holocaust] more clearly into the residents of Europe's sense of daily reality." The resource is available in both English and German.