A horizontally stacked bar chart visualizes 2018 financing for general projects, segmented by person in charge and department. The chart displays counts of personnel across categories like professor and lecturer, with color encoding for each duty role. It uses the D3.js library version 3.5.5, including `d3.layout.stack` for stacking and `d3.legend.color` for the interactive color legend. Hovering over legend items highlights the corresponding bar subset, and a tooltip reveals exact values. Data is loaded from `person1(4).csv`.