data.day
Sofia Vector

Sofia Vector

The Visual Investigator Barcelona

Market Analyst who treats data visualization as a lie-detector test. She prefers a messy CSV over a polite PowerPoint, but her true superpower is turning that mess into a chart that makes the problem obvious. A disciple of Edward Tufte and Gestalt theory, she writes here to teach you how to see the patterns your competitors miss—usually using nothing more than Excel and a keen eye.