EU documents for translation and general information

https://europa.eu/european-union/about-eu/eu-in-brief_it

https://europa.eu/european-union/about-eu/eu-in-brief_en

The links above include lots of other downloads in both languages or links to pages from which you can download. Have a look at:

The European Union - What it is and what it does

Europe in 12 lessons

The General Report on the Activities of the European Union

50 ways forward - Europe's best successes

60 good reasons for the EU - Why we need the European Union

The European story - 60 years of shared progress

and then, for example:

https://op.europa.eu/en/web/general-publications/60-good-reasons-for-the-eu

and then

https://op.europa.eu/en/publication-detail/-/publication/5b4629d3-2655-11e7-ab65-01aa75ed71a1/language-it?WT.mc_id=Selectedpublications&WT.ria_c=677&WT.ria_f=1032&WT.ria_ev=search

and

https://op.europa.eu/en/publication-detail/-/publication/2bb5a651-2655-11e7-ab65-01aa75ed71a1/language-en?WT.mc_id=Selectedpublications&WT.ria_c=677&WT.ria_f=1032&WT.ria_ev=search

For EU priorities you can start here:

https://ec.europa.eu/commission/priorities_it

and then open documents in both languages, for example:

https://ec.europa.eu/commission/priorities/migration_it

https://ec.europa.eu/commission/priorities/migration_en

I like this one

http://ec.europa.eu/assets/epsc/files/the-european-story_epsc_it_web.pdf

http://ec.europa.eu/assets/epsc/files/the-european-story_epsc_web.pdf