This example shows customer behavior data from a CSV file through two interactive charts. The first is a multi-series line chart displaying annual income, spending score, and satisfaction rating across customer IDs. The second combines a bar chart of store visits with a line chart of online purchases, using dual y-axes. Both visualizations are built with Plotly.js, using its `Plotly.newPlot` method, and load data through `Plotly.d3.csv`.