Demographic history is now recognised as one of the most important components of social and economic history. Although the empirical contexts of some of these volumes published between 1924 and 1995, (particularly those focussed on modelling and planning for population change) can at first seem out-of-date, the concerns discussed remain very much at the focus of public discourse. Indeed, they seem to have been given added urgency into the second quarter of the 21st Century as the world seeks to recover from the long-term economic and social, as well as demographic, consequences of the COVID pandemic and the global environmental crisis.