These are the private "offices" in the Scottish parliarment for MSPs (though they aren't always used for the purpose intend, for example some are used for storage)
The Scottish Parliament (Scottish Gaelic: Pàrlamaid na h-Alba; Scots: The Scots Pairlament) is the devolved unicameral legislature of Scotland. Located in the Holyrood area of the capital city, Edinburgh, it is frequently referred to by the metonym Holyrood.
The Parliament is a democratically elected body comprising 129 members known as Members of the Scottish Parliament (MSPs), elected for four-year terms under the additional member system: 73 MSPs represent individual geographical constituencies elected by the plurality ("first past the post") system, while a further 56 are returned from eight additional member regions, each electing seven MSPs. The most recent general election to the Parliament was held on 5 May 2016, with the Scottish National Party winning a plurality.