Under personal details you are required to mention you passport or ID number. The application letter is short and direct. The letterhead refers to the number of the vacancy. Italian newspapers are a good source of information regarding vacancies and employers recruiting at that moment. Use a very formal style for your letter and include impressive references with your open application.
Personal contacts are the best way to a job.
The application consists of a typed CV and a short typed letter. The CV is in chronological order and about two pages long. Your personal details should include your date and place of birth, your nationality, your telephone number and your civil status. The style of the letter is stately and official. Explain briefly why you want the job, they will ask more in-depth questions during the interview.