The dataviz community is broad and encompasses practitioners from a range of backgrounds, professions, and interests. In an effort to get to know the community, Nightingale periodically features interviews with dataviz practitioners to showcase what working in dataviz looks like for them. Today, we meet Lawrence Gray, Ph.D., Head of Data Science at KPMG Spark, an adjunct faculty teaching analytics including visualization, and an entrepreneur who has described himself as a “chill guy with interests from Reggae to surfing.” He also contributes to open source communities through NumFOCUS, which supports innovative scientific…