Cover Page

VISUAL ANALYTICS WITH TABLEAU®

 

 

ALEXANDER LOTH

 

 

 

 

 

 

 

Wiley Logo

For Yue and Noah and for my parents.

About the Author

Alexander Loth is a data scientist with a background in computational nuclear research. Since 2015, he has been with Tableau Software as digital strategist. In that role, he has advised many large companies in their transformation to become data‐driven organizations.

Alexander has an MBA from the Frankfurt School of Finance & Management, where he is also a lecturer for the Executive MBA programme. Prior to Tableau, he worked at the European Organization for Nuclear Research (CERN), at Capgemini, and at SAP.

A cofounder of the fintech start‐up Futura Analytics, Alexander has written and spoken extensively on topics such as crypto assets, big data, machine learning, digital transformation, and business analytics.

About the Technical Editors

Florian Ramseger is a Product Specialist at Tableau Software, where he helps customers tell their data stories using Tableau Public. Prior to joining Tableau, Florian lead different data projects at the International Red Cross and the World Economic Forum. He has also worked in academia as a researcher and lecturer for macroeconomics. Florian has a BSc in Economics & Geography from University College London and a MSc in Economics & Economic History from the London School of Economics.

Mark Bradbourne has been an analytics professional since 1997. He holds a certification in Business Analytics from TDWI/ICCP and is a Certified Tableau Qualified Associate. He has been recognized as a Tableau Ambassador and works as a Tableau evangelist for KeyBank in Cleveland, Ohio. He frequently speaks at Tableau user group meetings as well as at the Tableau Fringe Festival.

Brahim Salem is a Certified Tableau Developer who has helped companies around the world understand their data better using Tableau, SQL, and Python for data visualization and manipulation. Brahim has worked in the banking, health, international development, and government sectors. He is fluent in advanced concepts such as level of detail expressions (LODs), nested LODs, custom SQL, table calculations, developing meaningful and storytelling dashboards, and data warehousing and architecture. He has extensive experience developing Tableau training materials for small and large size companies. Brahim holds an undergraduate degree in economics and a graduate degree in finance from American University.

Srilalitha Jammalamadaka is a certified Tableau specialist and data analyst helping various business clients with data visualizations. She has a master's degree in Manufacturing Engineering from Anna University, India. Recently, she has worked with Hughes Network Systems and the National Institute of Health (NIH) by using Tableau to bring out their data insights.

Credits

  • Associate Publisher

    Jim Minatel

  • Editorial Manager

    Pete Gaughan

  • Production Manager

    Katie Wisor

  • Project Editor

    Kelly Talbot

  • Production Editor

    Athiyappan Lalith Kumar

  • Technical Editors

    Florian Ramseger

    Mark Bradbourne

    Brahim Salem

    Srilalitha Jammalamadaka

  • Copy Editor

    Tiffany Taylor

  • Proofreader

    Evelyn Wellborn

  • Indexer

    Johnna VanHoose Dinse

  • Cover Designer

    Wiley

  • Cover Image

    Courtesy of Alexander Loth

Acknowledgments

I would like to thank the many people who helped make this book a reality. They provided critical feedback on initial drafts, very useful input during many conversations, and general guidance throughout the whole project. They include the people at Wiley and my colleagues at Tableau Software.

I would like to specifically mention the following names: Marcel Bickert, Michael Binzen, Mark Bradbourne, Paul Bremhorst, Richard Brünning, Andy Cotgreave, Elissa Fink, Sascha Hahn, Srilalitha Jammalamadaka, Sabine Janatschek, Janis Lasmanis, Athiyappan Lalith Kumar, Evelyn Wellborn, Jim Minatel, Florian Ramseger, Catherine Ramseger‐Tan, Brahim Salem, Sophie Sparkes, Christina Schwenke, Max Sirenko, Kelly Talbot, Tiffany Taylor, Nate Vogel, Peter Vogel, and Yue Zhou‐Loth.

I especially thank my family for their patience and encouragement, and particularly my wife Yue, who gave birth to our son Noah at the time of completion of this book.

Thank you very much!

Foreword by Nate Vogel

Tableau was founded with a simple mission: helping people to see and understand their data. More than 15 years later, we are pursuing that same goal. A data‐driven corporate culture is the key to successful digitization. Companies that involve as many employees as possible in data evaluation and promote analytical thinking are well‐positioned.

Tableau gives people the power of data. We've designed our software to be flexible and capable of both helping a single person answer simple data questions and enabling thousands of people in a company to execute complex queries against massive databases.

This includes the cross‐departmental use of data, because not only the amount of data, but also the number of data sources, is increasing—especially through the triumph of the cloud. This opens up completely new possibilities for analysis: With the help of professional solutions, information from different areas can be combined and integrated into a common data pool. This results in new perspectives and synergies that also make complex and strategic evaluations possible.

Tableau can help you answer questions with data. Every day, we hear stories about how Tableau helps increase sales, streamline operations, improve customer service, manage investments, assess quality and safety, investigate and treat diseases, conduct academic research, address environmental issues, and improve education!

This book will be a hands‐on guide to how you can enrich your business and personal work through Alexander Loth's extensive experience with Tableau and big data. With this book, Alexander has managed to portray the use of Tableau for everyday use. In addition, he always uses practical examples to show a way to increase analytical competence.

I wish you an informative read, and I am sure that you will find numerous suggestions that can advance your company with data visualization.

Long live DATA!

Nate Vogel

Vice President, Worldwide Sales & Partner Readiness

Tableau Software

Foreword by Sophie Sparkes

We have never had more data at our fingertips than we do right now. Advances in technology are letting us capture and store more data than ever before. At the same time, the audience accessing and using data is growing ever larger. The question is, how do we find the insights within this data? And, more important, how do we communicate these insights?

We humans are a visual species. We can quickly and effectively understand complex information when it is presented in a visual form. We are also a storytelling species. We attach narratives to everything we see. So, effective data communication is a combination of images and words that explain the underlying data and analysis.

When it comes to visually analyzing data and sharing insights, Tableau is in a league of its own. Tableau's flexible drag‐and‐drop design lets anyone—from a single user to a company of thousands—answer their data questions. Tableau also lets you share your answers directly with your audience. Tableau truly lets people communicate with data.

This book is a hands‐on guide to how you can enrich your business and personal work through Tableau. Alexander Loth's extensive experience with Tableau and big data means you are learning from the best. With this book, Alexander has successfully portrayed everyday Tableau. Additionally, his clear explanations and step‐by‐step practical examples guide you from the basics to more‐advanced topics in a seamless fashion.

I am sure you will get a lot out of this book and wish you all the best on your data journey.

Sophie Sparkes
Community Manager
The Information Lab UK