<p>Open source GIS expert, OSGeo Charter, QGIS PSC member, and author of <a href="https://www.packtpub.com/big-data-and-business-intelligence/learning-qgis-third-edition" rel="nofollow noreferrer">Learning QGIS</a> and <a href="https://locatepress.com/qmd" rel="nofollow noreferrer">QGIS Map Design</a>.</p>
<p>Interests: open source GIS, open data, spatial databases, GIS-T, data visualization for exploration</p>
<p>Twitter: <a href="http://twitter.com/underdarkGIS" rel="nofollow noreferrer">@underdarkGIS</a></p></p>

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