Data Visualization Skill Chart selection guidance, Python visualization code patterns, design principles, and accessibility considerations for creating effective data visualizations. Chart Selection Guide Choose by Data Relationship | What You're Showing | Best Chart | Alternatives | |---|---|---| | Trend over time | Line chart | Area chart (if showing cumulative or composition) | | Comparison across categories | Vertical bar chart | Horizontal bar (many categories), lollipop chart | | Ranking | Horizontal bar chart | Dot plot, slope chart (comparing two periods) | | Part-to-whole composition…