Diagrams and Tables are visual tools used to communicate information and data. Diagrams are graphical representations of relationships and objects, while Tables are used to organize and display information or numerical data in a structured format. Diagrams can take many forms, such as flowcharts, Venn diagrams, histograms, network diagrams, and pie charts. Flowcharts are used to visually represent the steps in a process, while Venn diagrams are used to compare and contrast sets of data. Histograms display the frequency of data, network diagrams show relationships between components, and pie charts are used to represent proportions of a whole. Tables are used to display numerical data in rows and columns. The data can be organized by categories or fields, such as in a spreadsheet. Other types of Tables include frequency tables, which display the number of occurrences of a particular item, and contingency tables, which are used to analyze the relationship between two or more variables.