In general, they are used to retain user preferences, store information for things like shopping carts, and provide anonymised tracking data to third party applications like Google Analytics.
If you are not happy, then you can adjust your browser settings to disable cookies. We suggest consulting the Help section of your browser or taking a look at the About Cookies website which offers guidance for all modern browsers.
Third-party cookies are cookies set on your machine by external websites whose services are used on this site. They are the sharing buttons across the site that allow visitors to share content onto social networks. Cookies are currently set by LinkedIn, Twitter, Facebook, Google+ and Pinterest.
In order to implement these buttons and connect them to the relevant social networks and external sites, there are scripts from domains outside of our website.