If you want to use in Amsterdam the metro, tram or bus you´ll need an ov-chip card. For the train you can use this this card too, but is it not yet mandatory and it is easier to buy a normal ticket.
You can buy tickets at the yellow ticket machines and in bigger stations also at the desk Train Tickets & Services. If you buy at the desk, you’ll pay €0,50 more because of the extra service you get.
The touch screens of the ticket machines have an English language option. You’ll pay with euro coins or with a debit card that uses a "PIN" code. The machines don’t accept notes. Just a few accept credit cards and they charge an additional €1 for that facility.
You can choose to travel comfort class (1rst class) or second class. Most Dutch people travel second class, because this is also comfortable and less expensive.
The Amsterdam train stations
Amsterdam Centraal - city centre
Amsterdam Bijlmer/ArenA - close to Amsterdam ArenA stadium, as well as some major shopping and business centres.
Amsterdam RAI - close to the RAI convention centre
Amsterdam Holendrecht - close to the AMC hospital
Amsterdam Science Park
Amsterdam Sloterdijk Hemboog
Amsterdam Zuid – close to Amsterdam World Trade Centre.