Cookie Policy
This site uses a small number of cookies. When you first visit, you'll see a banner where you can accept all cookies or reject everything beyond what's strictly necessary. You can change your mind at any time — use the link at the bottom of this page or in the site footer.
Essential cookies
These are required for the site to function correctly (for example, remembering your cookie choice) and are set regardless of consent, in line with UK PECR rules for strictly necessary cookies.
Analytics & advertising cookies (optional)
With your consent, we may use analytics tools to understand how the site is used, and advertising measurement tools to understand which campaigns brought a reader to the site. These are only activated after you click "Accept All" in the cookie banner, and are switched off if you click "Reject All".
Cookies from third-party links
If you click through to a recommended course (for example, on Coursera), that provider may set its own cookies once you land on their site. Those cookies are outside our control and are governed by the provider's own cookie/privacy policy.
Managing cookies in your browser
Most browsers let you block or delete cookies through their settings. Doing so may affect how parts of this site (and others) function.