A cookie is a small file that we put on your computer to help us provide you with a good online experience. It's the standard way of distinguishing you from other users of the site, and learning how we can make improvements.
There are two types of cookie in place on the site:
Cookies that help us understand how our site is used
We use Google Analytics to measure what people do on our site. This is the most common analytics tool on the Internet, and we use it to look at things like which pages are most popular, and which browsers people use. It's a really useful service for us, because we want to keep on learning about what makes good user experience. You can find out more here.
Cookies that remember your preferences
There are a number of instances where it's useful to record what you've done previously on the site, so we don't have to ask you the same question again.
These are all standard uses of cookies, and we do not feel that they record any more information than the need to. However, if you wish to restrict or block web browser cookies which are set on your device then you can do this through your browser settings; the Help function within your browser should tell you how. Alternatively, you may wish to visit www.aboutcookies.org, which contains comprehensive information on how to do this on a wide variety of desktop browsers.