Charismatic, insatiable and cruel, Henry VIII was, as John Guy shows, a king who became mesmerized by his own legend - and in the process destroyed and remade England. Said to be a 'pillager of the commonwealth', this most instantly recognizable of kings remains a figure of extreme contradictions: magnificent and vengeful; a devout traditionalist who oversaw a cataclysmic rupture with the church in Rome; a talented, towering figure who nevertheless could not bear to meet people's eyes when he talked to them. In this revealing new account, John Guy looks behind the mask into Henry's mind to explore how he understood the world and his place in it - from his isolated upbringing and the blazing glory of his accession, to his desperate quest for fame and an heir and the terrifying paranoia of his last, agonising, 54-inch-waisted years.

'To be a medieval king was a job of work ... This was a man who knew how to run a complex organization. He was England's CEO' The youngest of William the Conqueror's sons, Henry I came to unchallenged power only after two of his brothers died in strange hunting accidents and he had imprisoned the other. He was destined to become one of the greatest of all medieval monarchs, both through his own ruthlessness, and through his dynastic legacy. Edmund King's engrossing portrait shows a strikingly charismatic, intelligent and fortunate man, whose rule was looked back on as the real post-conquest founding of England as a new realm: wealthy, stable, bureaucratised and self-confident.

No English king has so divided opinion, both during his reign and in the centuries since, more than Richard III. He was loathed in his own time for the never-confirmed murder of his young nephews, the Princes in the Tower, and died fighting his own subjects on the battlefield. This is the vision of Richard we have inherited from Shakespeare. Equally, he inspired great loyalty in his followers. In this enlightening, even-handed study, Rosemary Horrox builds a complex picture of a king who by any standard failed as a monarch. He was killed after only two years on the throne, without an heir, and brought such a decisive end to the House of York that Henry Tudor was able to seize the throne, despite his extremely tenuous claim. Whether Richard was undone by his own fierce ambitions, or by the legacy of a Yorkist dynasty which was already profoundly dysfunctional, the end result was the same: Richard III destroyed the very dynasty that he had spent his life so passionately defending.

The elder daughter of Henry VIII, Mary I (1553-58) became England's ruler on the unexpected death of her brother Edward VI. Her short reign is one of the great potential turning points in the country's history. As a convinced Catholic and the wife of Philip II, king of Spain and the most powerful of all European monarchs, Mary could have completely changed her country's orbit, making it a province of the Habsburg Empire and obedient again to Rome. These extraordinary possibilities are fully dramatized in John Edward's superb short biography. The real Mary I has almost disappeared under the great mass of Protestant propaganda that buried her reputation during her younger sister, Elizabeth I's reign. But what if she had succeeded?

Although he styled himself 'His Highness', adopted the court ritual of his royal predecessors, and lived in the former royal palaces of Whitehall and Hampton Court, Oliver Cromwell was not a king - in spite of the best efforts of his supporters to crown him. Yet, as David Horspool shows in this illuminating new portrait of England's Lord Protector, Cromwell, the Puritan son of Cambridgeshire gentry, wielded such influence that it would be a pretence to say that power really lay with the collective. The years of Cromwell's rise to power, shaped by a decade-long civil war, saw a sustained attempt at the collective government of England; the first attempts at a real Union of Britain; the beginnings of empire; a radically new solution to the idea of a national religion; atrocities in Ireland; and the readmission to England of the Jews, a people officially banned for over three and a half centuries. At the end of it, Oliver Cromwell had emerged as the country's sole ruler: to his enemies, and probably to most of his countrymen, his legacy looked as likely to last as that of the Stuart dynasty he had replaced.

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 In the popular imagination, as in her portraits, Elizabeth I is the image of monarchical power. The Virgin Queen ruled over a Golden Age: the Spanish Armada was defeated and England's enemies scattered; English explorers reached almost to the ends of the earth; a new Church of England rose from the ashes of past conflict, and the English Renaissance bloomed in the genius of Shakespeare, Spenser and Sidney. But the image is also armour. In this illuminating new account of Elizabeth's reign, Helen Castor shows how England's iconic queen was shaped by profound and enduring insecurity-an insecurity which was both a matter of practical political reality and personal psychology. From her precarious upbringing at the whim of a brutal, capricious father and her perilous accession after his death, to the religious division that marred her state and the failure to marry that threatened her line, Elizabeth lived under constant threat. But, facing down her enemies with a compellingly inscrutable public persona, the last and greatest of the Tudor monarchs would become a timeless, fearless queen.