I've not read it yet, but the supposedly-excellent “Doughnut Economics" by Kate Raworth is 99p on Kindle and Kobo right now:
https://www.amazon.co.uk/Doughnut-Economics-Seven-21st-Century-Economist-ebook/dp/B01BUOGF58/ref=sr_1_1?keywords=doughnut+economics&qid=1691236761&sprefix=doughn,aps,106&sr=8-1