I would like to pass on an excellent talk by Ian Turton.
This presentation is a great introduction to using an enjoying open source software for everyone, entertaining illustrated with examples from the GeoTools project.
A big thanks to Ian for this presentation and his long standing outreach efforts. Champions like this make GeoTools a friendly place to work for everyone involved.
We hope everyone enjoyed FOSS4G 2015 Europe and look forward to seeing you in Seoul!