Brianna Parkins: Privileged white women in difficult marriages are my latest obsession – and a free lesson on why we should pay more attention to our finances

If you asked me what my favourite genre of literature is, I would say ‘autobiographical non-fiction’ or ‘whatever is in the three-for-two paperback sale at the WH Smith at the airport’. But doing a stocktake of my top Audible listens and the most-thumbed books on the shelf reveals the real answer: it’s ‘privileged white women in difficult marriages’.