The Castle Diaries were published in two volumes in 1980 and 1984, chronicling her time in office from 1964–1976 and providing an insight into the workings of Cabinet Government. Edmund Dell, reviewing the diaries that cover the years 1974–76 in the "London Review of Books", said that it "shows more about the nature of cabinet government – even though it deals with only one Cabinet – than any previous publication, academic, political or biographical. It is, I think, better than Crossman". Michael Foot in the "Listener" claimed that the diary, "whatever else it is or not, is a human document, hopelessly absorbing". Paul Johnson in the "Sunday Telegraph" wrote that it was "a contribution of first rate importance to our knowledge of modern politics".