1. Tables: Tables are a structured way to present data in rows and columns. Each row represents a different data point, and each column represents a different variable. This makes it easy to compare and analyze different pieces of data.

2. Graphs: Graphs are visual representations of data that show relationships between variables. They can be used to illustrate trends, patterns, and outliers in a dataset. Common graph types include bar graphs, line graphs, scatter plots, and pie charts.