Explore the world of data visualization at Twitter through this conference talk from JSConf.ar 2014. Dive into the Visual Insights team's work with various departments to create compelling visualizations for major global events. Learn about their approach to translating Twitter reactions into impactful images using web standards, storytelling, data analysis, and advanced graphics techniques. Discover how they leverage different web technologies like 2D Canvas, WebGL, SVG, and HTML based on specific project requirements. Follow their workflow from research and design to data processing, prototyping, and publishing. Gain insights into visualizing government and news databases, edge bundling, interactive visualizations, and temperature anomalies. Understand the key factors considered in choosing the right tools and techniques for each project, including element count, shape complexity, interaction needs, mobile support, and available libraries.