This site is a participant in the Amazon Services LLC and Amazon UK Associates Programme, an affiliate advertising programme designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com and Amazon.co.uk.

We also use affiliate links from Apple and Bookshop.org, so if you buy anything via these links from this site, we may earn a commission from those sites.

Bookshop.org supports independent bookshops.

This means that we may sometimes make a small commission if you purchase an item through one of these links. The price you pay for the item is the same, whether you bought the item through an affiliate link or not. We use affiliate links to help cover the costs of running and maintaining this site.