The purpose of the study was to understand the experiences of data scientists regarding common skills and strategies of interpreting and creating data visualizations. In this Delphi study, the participants were researchers in Data Science using three rounds of surveys. Skills and strategies were identified after Delphi Panel 1 and then brought back to them in Delphi Panel 2 to rate the level of importance they attribute to those skills/strategies. Consensus was determined using a cutoff for the interquartile range for each skill/strategy, and overall group ratings were presented to researchers in Delphi Panel 3 for them to adjust their ratings if desired. This study provided empirical evidence of skills/strategies that data scientists engage in when interpreting and creating visualizations.