This site uses cookies – small text files that are placed on your machine to help the site provide a better user experience. In general, cookies are used to retain user preferences, store information for things like shopping baskets, and provide anonymised tracking data to third party applications like Google Analytics. As a rule, cookies will make your browsing experience better. However, you may prefer to disable cookies on this site and on others. The most effective way to do this is to disable cookies in your browser. We suggest consulting the Help section of your browser which offers guidance for about this policy.

A number of our pages use them to remember:

  • your display preferences, such as contrast colour settings or font size
  • if you have already replied to a survey pop-up that asks you if the content was helpful or not (so you won’t be asked again)
  • if you have agreed (or not) to our use of cookies on this site

Also, some videos embedded in our pages use a cookie to anonymously gather statistics on how you got there and what videos you visited.

Enabling them is not strictly necessary for the website to work but it will provide you with a better browsing experience. You can delete or block them, but if you do that some features of this site may not work as intended.

The cookie-related information is not used to identify you personally and the pattern data is fully under our control. They are not used for any purpose other than those described here.