Can another book on the Common Agricultural Policy (CAP) still be worth reading? The well-known CAP books by Fennell, Ritson and Harvey, and Grant and Ackrill were all published more than 10 years ago: so an update in the UK is not superfluous. Hill's book appeared in November 2011, although the publisher has dated it 2012. It has an unusual structure and is written in an easy, readable style. Nearly all chapter titles start with ‘Understanding’. The author is worried that students read quickly outdated reports, web sites and overviews and advises them to read this book.