Depending on your nationality, you may require a visa if you are planning to visit the Netherlands for a short period of time (maximum of three months). Bear in mind that this procedure may take some time, so it's best to book your travels after you are certain a visa has been granted.
A foreign national from the EU, EEA or Switzerland is exempt from the visa requirement. There are also some nationalities outside the EU who do not require a visat. For a list of countires who require a short-stay visa refer to the IND brochure.
Foreign nationals apply for tourist visas at the Dutch embassy or consulate in their country of origin where they can collect them later. A tourist visa is a sticker. The embassy or consulate will affix this tourist visa to your passport.
A pdf brochure which outlines visa requirements and possibilities can be found here.
Those visiting a person considered a knowledge migrant in the Netherlands may require a tourist visa. As a knowledge migrant, you yourself will have to sign a declaration stating that you are personally acquainted to the visitor. Such a declaration is called a garantverklaring, and without this your visitor will not be able to apply for a visa.
In some cases, the person signing the declaration must authenticate their signature.
If you wish to stay in the Netherlands for longer than three months this cannot be classed as a tourist stay. In this case you are required to apply for a temporary residence permit (machtiging tot voorlopig verblijf, MVV).
Dutch Ministry of Foreign Affairs (ministerie van Buitenlandse Zaken)
Website: www.minbuza.nl/en/home
Immigration and Naturalisation Service(Immigratie en naturalisatiedienst, IND)
Website: www.ind.nl/EN/index.asp