Authors

Helder da Rocha

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Helder teaches, writes and develops applications with Java and Web technologies since 1995. In 1996 he wrote one of the first books in Portuguese about HTML and JavaScript, and since then he created hundreds of presentations, tutorials, and course materials on Java, Java EE, programming tools, patterns, techniques, methodologies, HTML, CSS, JavaScript, SVG, XML and related technologies, data visualization, Arduino and Internet of Things. He holds a masters degree in Computer Science. He also has a background in the visual arts and design and has some of his artwork in permanent museum exhibits. He lives in Brazil, where he works as an independent consultant, developer and instructor and a frequent speaker at technological events.

Books from Helder da Rocha

  1. Learn Chart.js
    $20.99
    Design interactive graphics and visuals for your data-driven applications using the popular open-source Chart.js data visualization library.
  2. Learn D3.js
    $24.99
    Explore the power of D3.js 5 and its integration with web technologies for building rich and interactive data visualization solutions