This open-access book-in-progress, by Jack Dougherty and Ilya Ilyankou, is under contract with O’Reilly Media, Inc., and was last updated on: 30 Jul 2020

Tell your story and show it with data, using free and easy-to-learn tools on the web. This introductory book teaches you how to design interactive charts and customized maps for your website, beginning with easy drag-and-drop tools, such as Google Sheets, Datawrapper, and Tableau Public. You’ll also gradually learn how to edit open-source code templates like Chart.js, Highcharts, and Leaflet on GitHub. Follow along with the step-by-step tutorials, real-world examples, and online resources. This book is ideal for students, non-profit organizations, small business owners, local governments, journalists, academics, or anyone who wants to tell their story and show the data. No coding experience is required.

Read for free online at or purchase print/eBook editions, to come from the publisher.

Please send corrections or suggestions for this book-in-progress to, or open an issue or submit a pull request on its GitHub repository. If you submit a GitHub pull request, in your commit message, please add the sentence “I assign the copyright of this contribution to Jack Dougherty and Ilya Ilyankou,” so that we can maintain the option of publishing this book in other forms.

View open-source code for source text and templates at

Hands-On Data Visualization is copyrighted by Jack Dougherty and Ilya Ilyankou and distributed under a Creative Commons BY-NC-ND 4.0 International License. You may freely share this content for non-commercial purposes, with a source credit to


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The information is this book is provided without warranty. The lead author, contributors, and publisher have neither liability nor responsibility to any person or entity related to any loss or damages arising from the information contained in this book.