Most MSPs sit on at least one committee (smaller groups of MSPs) of the Scottish Parliament.
In these committees MSPs discuss legislation in detail and work closely together.
The committees have the power to require anyone to give evidence before them and to produce reports in connection with their enquiries.
Unlike Westminster, Scottish Parliament committees can propose as well as scrutinise legislation.
Some committees eg the Health Committee are permanent and meet weekly to review the work of the Scottish Government.
Other committees are only temporary and are set up to investigate issues or make recommendations eg the Devolution (Further Powers) Committee which existed during the 2011-16 Parliament to investigate the additional powers being devolved to the Scottish Parliament after the Independence Referendum.
There are two types of committee in the Scottish Parliament
Examples of mandatory committees are the Equal Opportunities Committee and the Finance Committee.
Examples of 'subject' committees are the Education and Skills Committee and the Health and Sport Committee.
All committees are made up of between five and eleven MSPs. Their make-up is based on the proportion of seats each party has overall. MSPs are more likely to consider issues based on their merits rather than oppose them on a party political basis.
Any MSP has the right to attend a committee meeting and to ask questions.
When sitting on a committee MSPs represent the people of their area by:
Committees meet weekly or fortnightly usually on Tuesdays, Wednesdays or Thursday mornings. Meetings take place in one of the Scottish Parliament's committee rooms.
Most are open to the public. In summer, many committes will move around and sit at various locations across Scotland.