Florence to Venice part. 'Smart' (Smart 1 or Smart 2) is the fare to look for on most international journeys.  It's a cheap advance-purchase fare, non-refundable, no changes to travel plans.  You may also see 'MOOVE' or 'GO' fares, which are pretty much the same as 'Smart price' so you can also use these, and may have to if you want a 2-bed sleeper. 'Global Pass' is what you should select to make a 'reservation only' booking to go with a railpass. Ignore the other discounted fares (including student & senior fares) which are normally only for people the Italian Railways 'Cartavaggio' railcards. If you see a note saying "Reservations must be made in Italy", all it means is that seat reservation is compulsory for that train for any part of the journey within Italy.  It's poorly translated into English, it does not mean you can only make reservations on this train when you get to Italy! "Seat near to...".  You can ignore this.  All it's asking is whether you want to book a seat near another specific seat that a friend of yours has already booked, for example if your granny is already booked on the same train is car 12, seat 56, you can ask for a seat near her.  If granny isn't on the train, just ignore this bit, leaving the coach and seat number boxes blank. "Seats Salottino Business". You can ignore this.  It's an option given under 'mandatory reservation' when booking 1st class on Eurostar