EU Citizen?

I'm on holiday in Dubrovnik, which GB Shaw apparently called a paradise on earth - we've come over from Budapest (Hungary) which is now part of the EU. Croatia is also looking to join the EU, and in the square in Old Dubrovnik today I picked up an ABC lexicon to the EU in Croatian (not that I can understand Croatian): it made me realise (looking through the entries) how little I actually know about the way the EU operates. I knew about Schengen and the EMU obviously, but had no concept of Eurostat or the EIB. I think I need to become a better European! Seriously though, my point is that - as an EU citizen - I've never seen anything as simple or as straightforward an introduction to what the EU actually does before. In the days of 500 page constitutions, perhaps this should be kept to the forefront of the EU's collective mind...