Making sense of data is a valued service in today's world. It may be a clich, but it's true that we are drowning in data and yet, we are thirsting for knowledge. The ability to make sense of data and the skill of using data to tell a compelling story is becoming one of the most valued capabilities in almost every field, which includes business, journalism, retail, manufacturing, medicine, and public service. Tableau Public (for more information, visit www.tableaupublic.com), which is Tableau Software's free Cloud-based data visualization client, is a powerfully transformative tool that can be used to create rich, interactive, and compelling data stories. It's a great platform if you wish to explore data through visualization. It enables your consumers to ask and answer questions that are interesting to them.
This book is written for people who are new to Tableau Public and who would like to learn how to create rich, interactive data visualizations from publicly available data sources that they then can easily share with others. Once you publish visualizations and data to Tableau Public, they are accessible to, and can be viewed and downloaded by, everyone. A typical Tableau Public data visualization contains public data sets such as sports, politics, public works, crime, census, socioeconomic metrics, and social media sentiment data. You can also create and use your own data. Many of these data sets are either readily available on the Internet, or can be accessed via a public records request or search (if they are harder to find, they can be scraped from the Internet). You can now control who can download your visualizations and data sets, which is a feature that was previously available only to paid subscribers. Tableau Public currently has a maximum data set size of 10 million rows and/or 10 GB of data.
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Having a look at the author profiles and galleries section of the Tableau website so that we can browse other authors' data visualizations (this is a great way to learn and gather ideas on how to best present data)
In the following screenshot, Tableau Zen Masters Anya A'hearn of Databrick and Allan Walker used data on San Francisco bike sharing to show the financial benefits of Bay Area Bike Share, a city-sponsored 30-minute bike sharing program, as well as a map of both the proposed expansion of the program and how far a person can actually ride a bike in half an hour.
This dashboard is featured in the Tableau Public gallery because it relates data to users clearly and concisely. It presents a great public interest story (commuting more efficiently in a notoriously congested city) and then grabs the viewer's attention with maps of current and future offerings. The second dashboard within the analysis is significant, as well. The authors described the Geographic Information Systems (GIS), the tools that they used to create innovative maps, as well as the methodology that went into the final product so that the users who are new to the tool can learn how to create a similar functionality for their own purposes:
As humans, we relate our experiences to each other in stories, and data points are an important component of stories. They quantify phenomena and, when combined with human actions and emotions, can make them more memorable. When authors create public interest story elements with Tableau Public, readers can interact with the analysis, which creates a highly personal experience and translates into increased participation and decreased abandonment. It's not difficult to embed Tableau Public visualizations into websites and blogs. It is as easy as copying and pasting the JavaScript that Tableau Public automatically renders for you.
Using Tableau Public increases accessibility to stories too. You can view data stories on any mobile device with a web browser and then share it with friends via social media sites such as Twitter or Facebook using Tableau Public's sharing functionality. Stories can be told with text as well as popular and tried-and-true visualization types such as maps, bar charts, lists, heat maps, line charts, and scatterplots. Maps are particularly easier to build in Tableau Public than most other data visualization offerings because Tableau has integrated geocoding (down to the city and postal code) directly into the application. Tableau Public has a built-in date hierarchy that makes it easy for users to drill through time dimensions just by clicking on a button. One of Tableau Software's taglines, Data to the People, is a reflection not only of the ability to distribute analyses sets to thousands of people at once, but also of the enhanced abilities of nontechnical users to explore their own data easily and derive relevant insights for their own community without having to learn a slew of technical skills.
One of the wonderful features about Tableau Public is that you can load data and visualize it on your own. Traditionally, this has been an activity that was undertaken with the help of programmers at work. With Tableau Public and new blogging platforms, nonprogrammers can develop data visualization, publish to the Tableau Public website, and embed the data visualization on their own website. The basic steps to create a Tableau Public visualization are as follows:
Tableau Public is used by some of the leading news organizations across the world, including The New York Times, The Guardian (UK), National Geographic (US), the Washington Post (US), the Boston Globe (US), La Informacion (Spain), and poca (Brazil). In the following sections, we will discuss installing Tableau Public. Then, we will take a look at how we can find some of these visualizations out there in the wild so that we can learn from others and create our own original visualizations.
Once the download begins, a Thank You screen gives you the option of retrying the download in case it does not automatically begin or it is downloading a different version. The version of Tableau Public that downloads automatically is the 64-bit version for Windows. Users of Mac should download the appropriate version for their computers, and users with 32-bit Windows machines should download the 32-bit version.
While the Tableau Public executable file downloads, you can scroll to the lower part of the Thank You page to learn more about the new features in Tableau Public 9.0. The speed with which Tableau Public downloads depends on the download speed of your network, and the 109 MB file usually takes a few minutes to download.
The TableauPublicDesktop-xbit.msi (where x has a value of either 32 or 64 depending on the version that you selected) file is downloaded. Navigate to that .msi file in Windows Explorer or the browser window and click on Open. Click on Run in the Open File - Security Warning dialog box that appears in the following screenshot. The Windows installer starts the Tableau installation process:
(You can customize the installation if you want to. Options include the directory in which the files are installed as well as the creation of a desktop icon and a Start Menu shortcut (for Windows machines). If you do not customize the installation, Tableau Public will be installed in the default directory on your computer, and the desktop icon and the Start Menu shortcut will be created.)
If a User Account Control dialog box appears with the Do you want to allow the following program to install software on this computer? prompt, click on Yes:
Tableau encourages new users to watch the video on this welcome page. To do so, click on the button named Watch the Getting Started Video. You can start building your first Tableau Public workbook any time.
You can open the files that you create in Tableau Public by clicking on the Open from Tableau Public link. When you click on the link, Tableau Public will prompt you to log in with the e-mail address that you have used to create your account, as shown in the following screenshot:
When you find the workbook that you would like to open, click on Open, and then the most recently saved version will open in Tableau Public on your computer, as shown in the following screenshot:
When you click on to Go to My Profile, your web browser will open your new profile page on Tableau Public. This is a page that displays information that you enter about yourself and your interests as well as a photograph of your choosing and links to other websites with which you're affiliated.
If you would like to explore other videos, click on the view all link next to the header. This will open Tableau's training video section of their corporate website in your browser. If the page doesn't open, you can access it by visiting
VIZ OF THE DAY: Tableau Public's staff selects a VIZ OF THE DAY from the recent publications on Tableau Public. These are the visualizations that are relevant to current events, explore important questions, and/or innovatively use the functionality of Tableau Public. You can subscribe to the VIZ OF THE DAY and view other selections by visiting
Resources that you can open include the Tableau Public blog, sample Data Sets, and links to live training. You can view all of these on Tableau Public's resources page in your Internet browser by visiting
We often learn by viewing other people's work. So, let's take a look at a few data visualizations created by other authors. Note that most Tableau Public data visualizations allow you to download the entire workbook. If data is not readily downloadable on the workbook page, you can export the underlying data to Excel while inside the workbook by using the desktop client of Tableau Public. There are several great places to find the best Tableau Public data visualizations, including Tableau Public and the VIZ OF THE DAY galleries (for more information, visit ) and the Tableau Public blog (to have a look at the blog, visit ). 152ee80cbc
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