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Mastering Tableau 2026

Mastering Tableau 2026 - Fifth Edition

By : Marleen Meier
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Mastering Tableau 2026

Mastering Tableau 2026

By: Marleen Meier

Overview of this book

Master the full capabilities of Tableau to design, build, and scale modern data visualization and business intelligence solutions. This book takes you beyond the basics to help you create advanced Tableau dashboards, perform efficient data preparation with Tableau Prep Builder, and deliver impactful analytics across your organization. Through practical examples, you’ll learn how to turn raw data into meaningful insights using proven Tableau data visualization techniques. As you progress, you’ll work with calculated fields and LOD expressions to build more flexible and powerful analyses. You’ll also explore performance optimization, deployment, and collaboration using Tableau Server, along with best practices for data governance and security in enterprise environments. In addition, the book covers AI-powered Tableau features that enhance analysis and accelerate insight discovery. You’ll apply advanced techniques such as time series analysis, geospatial analytics, and data modeling, and extend Tableau’s capabilities through Python and R integration for more sophisticated analytics workflows. By the end of this book, you’ll be equipped to build scalable, high-performance Tableau analytics solutions, enabling you to solve complex business problems with confidence.
Table of Contents (19 chapters)
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15
Chapter 15: The Intelligent Era of Tableau AI, Pulse, and Next
18
Index

Heatmaps

I want to share a feature with you that was part of an earlier Tableau release and has proven to be very useful when working with geographical data. It is the Marks type Density, with which you can create heatmaps. This new feature is not limited to maps; you can also use it for any other type of chart. However, it is most efficient for dense data where patterns cannot be spotted easily.

The following steps will illustrate an example of creating a heatmap:

  1. Open the Citylimits tab in the workbook related to this chapter. If you did not complete the previous exercise, please open the Citylimits tab from the solutions workbook of this chapter.
  2. Duplicate the worksheet and call it City Limits (2).
  3. Set the Marks card type to Density
    Image 18

    Figure 9.18: Texas city density

  4. Click on Color in the Marks card and select any color you like. I chose Density Gold Dark.
  5. Decrease Size in the Marks card by dragging the slider to the left...
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Mastering Tableau 2026
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