By law in Italy the “short term” rentals requires a written contract signature. The MyAmazingTimes experts prepared a “1-page” contract to respect the law requirements, and protect our guests and hosts. It contains the same info as your booking, simply in a 1 page version ready for paper signature.
The rental contract for tourist purposes is ruled by Art. 1 of Law 431/1998 to which, according to Art. 53 of the Tourism Code (Legislative Decree 79/2011), the rules of the Civil Code apply.
For this reason at your arrival you will be asked to sign a “short term rental contract”, for privacy reasons and to accomplish the regional law. You can see an example here.