Harold Wilson former prime ministers or senior parliamentary figures. There is an extensive bibliography on Harold Wilson. He is the author of a number of books. He is the subject of many biographies (both light and serious) and academic analyses of his career and various aspects of the policies pursued by the governments he led. He features in many "humorous" books. He was the Prime Minister in the so-called "Swinging London" era of the 1960s, and therefore features in many of the books about this period of history. Harold Wilson James Harold Wilson, Baron Wilson of Rievaulx, (11 March 1916– 24 May
Acting prime minister is on vacation, or is in ill health. In the early 20th century, when travel by ship was still the norm, it was not uncommon for there to be an acting Prime Minister for months on end. The deputy Prime Minister is usually designated as the acting Prime Minister, although another senior member of the government may fill the role if both the Prime Minister and deputy Prime Minister are unavailable. An acting Prime Minister is required quite frequently – for instance, between 3 December 2007 and 23 February 2009 (during Kevin Rudd's first term), Julia Gillard acted as Prime