This week's book giveaway is in the Reactive Progamming forum. We're giving away four copies of Reactive Streams in Java: Concurrency with RxJava, Reactor, and Akka Streams and have Adam Davis on-line! See this thread for details.
It's the Devoxx Belgium icon, not Devoxx Antwerp And the Atomium is still Belgium's most recognizable landmark. If it should/must be related with the town where the event takes place, it should probably be the Cathedral of Our Lady.