Giorgia Lupi and Stefanie Posavec are both renowned designers with a penchant for visualizing data. This passion turned a pen-pal project into a full-fledged book, Dear Data. For a year, they exchanged postcards weekly, cataloging their lives using different kinds of data. Some days, they counted the number of doors they walked through. Other days, they recorded their level of indecision. Regardless of the data they collected, they would visualize it differently in each postcard. Dear Data is a collection of these "slow data transmissions," with some color commentary sprinkled in. You can follow them on Twitter here. In this episode, we discuss: How they got their start in design. What inspired their book. What aspects of design and data they're most obsessed with. You can get show notes at ObsessedShow.com.