# Introduction to Charts ## Overview Every [**Variable**](/variables/variable-basics.md) that you create in Models is automatically visualised for you in a Chart in the [**Variable preview**](/variables/variable-basics.md#the-variables-preview).

Example of a Chart in a Variable preview

Similarly, if you select multiple related [**Assumptions**](/assumptions/introduction-to-assumptions.md), the Assumptions preview will display a chart.

Example of a Chart in an Assumptions preview

In both of these examples, the Charts can be manipulated (in terms of type of chart, information shown, time periods etc.), allowing you to dynamically investigate your Model's inputs and outputs, but these changes will be temporary, and will be lost when you select other items. To create permanent visualisations, you can use [**Dashboards**](/dashboards/dashboards-basics.md), in which you can view multiple charts in one place.

Example of several permanent Charts in a Dashboard

In either case, and anywhere else that you see a Models chart, the full range of chart customisations will be available to you, which you can read about in the next section. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.taglo.io/charts/introduction-to-charts.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.