Visualization of data can be highly effective or ineffective based on the selection and application of the appropriate or inappropriate visualization technique.
What do you need your visualization to communicate to your audience? The Data Visualisation Catalogue web site guides your consideration of various chart, graph, and other visualization approaches based on your communication and/or analysis requirements.
The web site from Data to Viz offers an interactive tool that assists in your selection of the appropriate visualization technique by leading you through a decision tree. Based on your responses, it will recommend an appropriate visualization, provide some relevant code, and offer some common caveats for consideration.