Alex Preston writes: “Audiobooks have been riding a wave of popularity in the past three years, and it appears that lockdown only intensified our engagement with the spoken word. A recent report by Deloitte put some numbers on the phenomenal rise. Global sales have been growing at 25–30% per annum for the past three years and will hit $3.5 billion in 2020, driven by the US and China, which each make up around a third of the market.”