There are two very practical websites to find your way around public transport in the Netherlands:

- the Dutch Railways website
- the 9292 website.

The first has all the timemtables of all trains in the Netherlands, plus prices, plus information about trainstations.

The 9292 site has all information about all public transport in Holland.

Both have an app (internet connection required) and are in Dutch and in English.

If you would like to speak to a human, the OV service shop in Amsterdam Central Station is a good option.