I'll translate it here for the benefit of other posters, as there's lots of good info there. Left image:
- [top left] fortress
- [top centre] defence tower
- [top right] AN IBERIAN SETTLEMENT
- [immediately below the above] central street: the life of the settlement was organised around it. Most habitations were on its both sides.
- [bottom left] plaza: it was the meeting place of the inhabitants of the settlement
- [bottom] walls: they surrounded the settlement and were made of stone.
Right image:
- [top left] A CELTIC SETTLEMENT
- [top centre-right] public buildings: at the centre of the settlement, usually there were buildings intended for political and religious purposes.
- [top right] hut: round shaped. The walls were made of adobe and stores; the roof was made of branches and straw
- [almost bottom left] lifestock enclosure: some livestocks was stored inside the settlement.
- [bottom] walls: the settlements were surrounded by a circular wall made of stone.
Corrections welcome given that I don't speak Catalan at all.