To make this site work properly, we sometimes place small data files called cookies on your device. Most big websites do this too.

What are cookies?

A cookie is a small text file that a website saves on your computer or mobile device when you visit the site. It enables the website to remember your actions and preferences (such as login, language, font size and other display preferences) over a period of time, so you don’t have to keep re-entering them whenever you come back to the site or browse from one page to another.

How do we use cookies?

A number of our pages use cookies, which include:

  • Strictly necessary cookies: Cookies set by Drupal and its modules used in performing various technical tasks.
  • Performance cookies: Google Analytics cookies, used for gathering statistics about site usage and user behavoiur (anonymously). Google Analytics stores information about what pages you visit, how long you are on the site, how you got here and what you click on. The data is not tied to personally identifiable information so this information cannot be used to identify who you are.
  • Google advertising cookies: Google Analytics Demographics and Interest Reporting, used to get an idea of the demographics and interests of our users so that we can develop our site and its content around our audience’s preferences. You can use the Google Analytics Opt-Out Browser Add-on to disable tracking by Google Analytics and Google Analytics for Display Advertising. You can also customise Google Display Network ads using the Ads Settings.
  • AddThis site statistics cookies: Targeting or advertising cookies: AddThis social sharing cookies, which allow users to share content on social networks and contain anonymous targeting information. These third-party cookies are set by Twitter, Facebook, Google+ and Pinterest, and enable these networks to collect information about what you are doing all around the internet, including on this website.

Enabling these cookies is not strictly necessary for the website to work but it will provide you with a better browsing experience. You can delete or block these cookies, 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. These cookies are not used for any purpose other than those described here.

How to control cookies

You can control and/or delete cookies as you wish – for details, see You can delete all cookies that are already on your computer and you can set most browsers to prevent them from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities may not work.