Every second person on the tube is reading a different book about a 31-year-old woman from Hackney. They are all different books about different 31-year-old women from Hackney, written by different 31-year-old women from Hackney. They all have a different one or two word titles and matte block colour cover, and effusive one-sentence reviews from other 31-year-old women from Hackney on the back. Not everyone who is reading them is a 31-year-old woman from Hackney. And not every 31-year-old woman from Hackney is reading one. I, for, example, am playing Bejeweled Blitz.