In 1953 Barbara Jones published Follies & Grottoes, a ‘handsome book on a fascinating subject’. It was the first book to look at follies in any depth, and was well-received. Almost twenty years later it was announced that there would be a revised edition, for whilst the first edition was remembered as a pioneering book, it was ‘not a comprehensive survey’. Upon publication in November 1974 (fifty years ago this week) the new edition was judged ‘double the size and more than twice as good’.