Introduction to Data Visualization

Data visualization

Before starting D3.js formally, let’s learn a bit more about data visualization. Data visualization is when you take raw data and present it visually using graphs, charts, and maps. It enables humans to detect trends and patterns in large data sets without wasting time. Data visualization gives meaning to complicated datasets and helps businesses identify the areas that require improvement and attention.

General data visualization tools

• Charts
• Graphs
• Maps
• Tables
• Dashboards

Below is an example of a pie chart that shows the top programming languages to use in 2020.