James's reign marked one of the very rare major breaks in England's monarchy. Already James VI of Scotland and a highly experienced ruler who had established his authority over the Scottish Kirk, he marched south on Elizabeth I's death to become James I of England and Ireland, uniting the British Isles for the first time and founding the Stuart dynasty which would, with several lurches, reign for over a century. Indeed his descendant still occupies the throne. A complex, curious man and great survivor, James drastically changed court life in London and presided over such major projects as the Authorized Version of the Bible and the establishment of English settlements in Virginia, Massachusetts, Gujarat and the Caribbean. Although he failed to unite England and Scotland, he insisted that ambassadors acknowledge him as King of Great Britain and that vessels from both countries display a version of the current Union Flag. He was often accused of being too informal and insufficiently regal - but when his son, Charles I, decided to redress these criticisms in his own reign he was destroyed. How much of the roots of this disaster were to be found in James's reign is one of the many problems dramatized in Thomas Cogswell's brilliant and highly entertaining new book.

'After my death,' George V said of his eldest son and heir, 'the boy will ruin himself within twelve months.' The forecast proved uncannily accurate. Edward VIII came to the throne in January 1936, provoked a constitutional crisis by his determination to marry the American divorcée Wallis Simpson, and abdicated in December. He was never crowned king. In choosing the woman he loved over his royal birthright, Edward shook the monarchy to its foundations. Given the new title 'Duke of Windsor' and essentially sent into exile, he remained a visible skeleton in the royal cupboard until his death in 1972 and he haunts the house of Windsor to this day. Drawing on unpublished material, notably correspondence with his most loyal (though much tried) supporter Winston Churchill, Piers Brendon's superb biography traces Edward's tumultuous public and private life from bright young prince to troubled sovereign, from wartime colonial governor to sad but glittering expatriate. With pace and panache, it cuts through the myths that still surround this most controversial of modern British monarchs.

Part of the Penguin Monarchs series: short, fresh, expert accounts of England's rulers in a collectible format. The cultural richness of the reign of Edward the Confessor marks the high point of Anglo-Saxon England. The saintly Edward has become one of the legendary figures in English. James Campbell's brilliant little book is the most insightful look at his personality and reign yet published.

King John ruled England for seventeen and a half years, yet his entire reign is usually reduced to one image: of the villainous monarch outmanoeuvred by rebellious barons into agreeing to Magna Carta at Runnymede in 1215. Ever since, John has come to be seen as an archetypal tyrant. But how evil was he? In this perceptive short account, Nicholas Vincent unpicks John's life through his deeds and his personality. The youngest of four brothers, overlooked and given a distinctly unroyal name, John seemed doomed to failure. As king, he was reputedly cruel and treacherous, pursuing his own interests at the expense of his country, losing the continental empire bequeathed to him by his father Henry and his brother Richard and eventually plunging England into civil war. Only his lordship of Ireland showed some success. Yet, as this fascinating biography asks, were his crimes necessarily greater than those of his ancestors - or was he judged more harshly because, ultimately, he failed as a warlord?

'James was a king tragically trapped by principle. Yet was it wise to attempt to change the national religion?' The short reign of James II is generally seen as one of the most catastrophic in British history, ending in his exile after he unsuccessfully tried to convert England to Catholicism, a crisis that would haunt the monarchy for generations. Ultimately, David Womersley's biography shows, James was a man whose blindness to subtlety and political reality brought about his ruinous downfall.

Part of the Penguin Monarchs series: short, fresh, expert accounts of England's rulers in a collectible format Henry VII was one of England's unlikeliest monarchs. An exile and outsider with barely a claim to the throne, his victory over Richard III at Bosworth Field seemed to many in 1485 only the latest in the sequence of violent convulsions among England's nobility that would come to be known as the Wars of the Roses - with little to suggest that the obscure Henry would last any longer than his predecessor. To break the cycle of division, usurpation, deposition and murder, he had both to maintain a grip on power and to convince England that his rule was both rightful and effective. Here, Sean Cunningham explores how, in his ruthless and controlling kingship, Henry VII did so, in the process founding the Tudor dynasty.

Part of the Penguin Monarchs series: short, fresh, expert accounts of England's rulers in a collectible format Henry VII was one of England's unlikeliest monarchs. An exile and outsider with barely a claim to the throne, his victory over Richard III at Bosworth Field seemed to many in 1485 only the latest in the sequence of violent convulsions among England's nobility that would come to be known as the Wars of the Roses - with little to suggest that the obscure Henry would last any longer than his predecessor. To break the cycle of division, usurpation, deposition and murder, he had both to maintain a grip on power and to convince England that his rule was both rightful and effective. Here, Sean Cunningham explores how, in his ruthless and controlling kingship, Henry VII did so, in the process founding the Tudor dynasty.

Henry VI, son of the all-conquering Henry V, was one of the least able and least successful of English kings. His long reign, which started when he was only nine months old, ended in catastrophe, with the loss of England's territories in France and a bankrupt England's long decline into civil war: the wars of the Roses. Yet, failure though Henry undoubtedly was, he remains an enigma. Was he always, as he became in the last disastrous years of his rule, a holy fool, simple-minded to the point of insanity and prey to the ambitions of others? Or was he more active and, as some have suggested, actively malign? In this groundbreaking new portrait, James Ross shows a king whose priorities diverged sharply from what England expected of its monarchs, and whose fitful engagement with government was directly, though not solely, responsible for the disasters that engulfed the kingdom during his reign.

Charles II has always been one of the most instantly recognisable British kings - both in his physical appearance, disseminated through endless portraits, prints and pub signs, and in his complicated mix of lasciviousness, cynicism and luxury. His father's execution and his own many years of exile made him a guarded, curious, unusually self-conscious ruler. He lived through some of the most striking events in the national history - from the Civil Wars to the Great Plague, from the Fire of London to the wars with the Dutch. Clare Jackson's marvellous book takes full advantage of its irrepressible subject.

The tragedy of Charles I dominates one of the most strange and painful periods in British history as the whole island tore itself apart over a deadly, entangled series of religious and political disputes. In Mark Kishlansky's brilliant account it is never in doubt that Charles created his own catastrophe, but he was nonetheless opposed by men with far fewer scruples and less consistency who for often quite contradictory reasons conspired to destroy him. This is a remarkable portrait of one of the most talented, thoughtful, loyal, moral, artistically alert and yet, somehow, disastrous of all this country's rulers.