‘The Karen Book of Rules’ takes a good hard look at what it means to be ‘a karen’ – the rather unflattering, relatively new name, or meme, associated with women of a certain type and attitude. Sub-titled ‘Harness your INNER KAREN and use your power for good’, it’s been put together, ever so slightly, but only just, tongue-in-cheek, by writers Karin Schimke and Karen Jeynes – both of whose name certainly qualifies them to comment.