General Information
Visa
All foreigners intending to enter Italy must provide the necessary documentation stating the reasons for and duration of their stay as well as, in some prescribed cases, evidence of adequate economic means and accommodation.
Whether or not is necessary depends on citizenship, country of origin, duration and reason for your stay.
Students from EU member States do not need a Visa.
The entry visa shall be issued by the Italian diplomatic missions or consulates in the country of origin or of permanent residence. The Ministry of Foreign Affairs and the Italian Diplomatic Representations are responsible for the issues of Visas. On the web site of the Ministry of Foreign Affairs it is possible to find the nearest Italian Diplomatic representation.
Further information at: http://www.esteri.it/visti/index_eng.asp
Residence Permit
As soon as foreign nationals enter Italy they should apply for a residence permit based on the same motivations specified on their entry visa. A residence permit is not required for business, tourism, short visits or study, provided that the stay does not exceed 3 months.
EU nationals do not need a residence permit to stay in Italy
For details see: http://www.poliziadistato.it/articolo/10716Declaration of presence
Under Legislative Decree no.32 of 28 February 2008 EU citizens who wish to stay in Italy for periods not exceeding 3 months should report their presence on Italian territory to the local Police authorities filling out the relevant form.
For details see: http://www.poliziadistato.it/articolo/10930

Practical information