There are several common types of charts and graphs used in data visualization. Here are some of the most commonly used ones:

  1. Bar Chart: A bar chart is a chart that uses rectangular bars to represent data. It is often used to compare different categories of data.

  2. Line Chart: A line chart uses a line to connect data points. It is commonly used to show trends or changes over time.

  3. Pie Chart: A pie chart is a circular chart that is divided into sectors to represent proportionate parts of a whole. It is often used to show percentages or proportions.

  4. Scatter Plot: A scatter plot is a graph that uses dots to represent data points. It is used to show the relationship between two variables.

  5. Area Chart: An area chart is similar to a line chart, but the area under the line is filled with color. It is often used to represent cumulative data or to compare multiple variables.

  6. Histogram: A histogram is a chart that represents the distribution of a dataset. It consists of a series of rectangles, where the width of each rectangle represents a range of values and the height represents the frequency or count of data points within that range.

  7. Heatmap: A heatmap is a graphical representation of data where values are indicated by color. It is often used to visualize large amounts of data and to identify patterns or trends.

  8. Box and Whisker Plot: A box and whisker plot is a chart that shows the distribution of a dataset. It displays the median, quartiles, and outliers, providing a summary of the data's distribution.

  These are just a few examples of the types of charts and graphs commonly used in data visualization. The choice of chart or graph depends on the type of data being visualized and the purpose of the visualization.