A Full Guide to Charts: Definition, Key Types & Examples

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What Is a Chart? Key Types & Their Uses Explained

Aug 11, 2025

7 min read

At a Glance

The purpose of charts in data storytelling and decision-making

When and how to use different types of charts effectively

Key visualizations – including Chartrics-exclusive charts

FAQs on chart selection, formatting, and automated updates in PowerPoint

Charts are more than just pretty visuals – they’re tools for storytelling. A well-chosen chart type can simplify complexity and present insights that raw data alone can’t. When built correctly, different types of charts can:

Make complex data easier to understand
Help spot outliers, correlations, and patterns
Drive faster and more confident decisions
Reduce the noise and emphasize what matters

A picture is worth a thousand words – having the right chart with the right data makes your message clear and actionable.

What is a Chart?

A chart is a visual representation of data designed to make numeric patterns easier to recognize. Charts can use bars, lines, dots, tables, or combinations of these to compare values, track changes, rank items, or display relationships.

Well-chosen charts help:

Reveal trends over time
Highlight comparisons between segments
Track KPIs and metrics
Identify risks and opportunities

How to Use Charts?

Understanding the basic chart definition – what a chart is and how it represents data – is the first step to using them effectively. Once you know this, you can choose the right type of chart to tell your story clearly. Using charts effectively starts with understanding your data and choosing the right format. Here’s how:

Identify your purpose: Are you comparing performance? Showing change over time? Highlighting top values?
Select the right chart type: Avoid defaulting to pie charts (yes, we said it!) – bar, line, or table visuals are often more precise and easier to read.
Keep it clear and consistent: Use colors with intent, reduce clutter, and make it intuitive.
Update with fresh data with Chartrics: You can keep your PowerPoint charts synced with Excel – stoppoing manual copy-paste and broken formatting.

Key Chart Types

Here’s a breakdown of commonly used (and custom) chart types available in Chartrics. Each type includes a brief description to help you understand when and why to use it.

Bar Chart

Use this chart to compare values across categories. Great for ranking items like revenue, market share, or any segmented data. Works well with both horizontal and vertical bars, depending on label length.

Line Chart

A good choice for showing trends over time. Helpful for tracking changes, patterns, or progress across time intervals. Multiple lines can compare categories within the same dimension.

Bubble Chart

Shows three variables at once using position and bubble size. Useful for comparing volume, positioning, and relationships in two-dimensional space.

Table Chart

Chartrics Custom Chart Type: Converts data tables into clear, visually formatted charts. Ideal for numeric breakdowns, rankings, and structured comparisons. Automatically refreshes when linked Excel data is updated.

Rating Scale

Chartrics Custom Chart Type: Displays scores or satisfaction levels on a consistent scale. Perfect for visualizing employee satisfaction, survey results, product reviews, or performance ratings. Makes comparisons quick and easy to interpret.

Metric Chart

Chartrics Custom Chart Type: Highlights a single key figure or KPI, often enhanced with conditional formatting to signal changes. Chartrics can automatically update narrative text and colors as data changes.

Frequently Asked Questions

1. What’s the best chart for showing change over time?

A line chart is usually best. It clearly shows progression, dips, or growth trends.

2. Should I use pie charts?

Not unless absolutely necessary. Pie charts can be harder to read than bar charts, especially with many slices or subtle differences in size.

3. How do I update my charts in PowerPoint without redoing everything?

Use Chartrics - it links your Excel data to your PowerPoint charts, updating visuals automatically when the data changes.

4. Can I highlight changes or risks with colors?

Yes! Chartrics’ conditional formatting lets bars, text, or other chart elements change color automatically based on data thresholds (e.g., turn red if below target).

5. What if I want to keep the formatting unchanged?

Chartrics preserves the formatting you’ve set, ensuring your PowerPoint layout, fonts, and styles remain intact even when the data updates.

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What Is a Chart? Key Types & Their Uses Explained

At a Glance

What is a Chart?

How to Use Charts?