His father, Prince Charles, and grandmother, the Queen, have drawn up a two-year training programme on the art of kingship, covering things such as the workings of government and constitutional affairs etc.
The Prince, who will be be King William V (unless he uses a middle names), is currently serving on Royal Navy warship HMS Iron Duke.
Meanwhile, speculation continues to amount on whether he will reign alongside Queen Catherine....
The Apprentice: Prince William's royal training in how to be king
By Sam Greenhill
27th July 2008
Prince William is preparing to become an 'apprentice' to learn how to be king.
The second in line to the throne will start an intensive two-year training programme drawn up by the Queen and Prince Charles when he quits the military in the New Year.
His lessons in the 'art of kingship' will include working in different Whitehall departments to get a better idea of how government works, private instruction from constitutional experts, and briefings by privy councillors such as former Prime Minister Sir John Major.
It will be part of the Prince's full-time royal duties which will also include an increasing amount of charity work when he leaves the Armed Forces.
Future king: His apprenticeship will begin when he quits the military in the New Year
He is currently serving in the Royal Navy - last Friday he took part in another dramatic raid on drug smugglers in the Caribbean - and will return to his Army unit, the Blues and Royals, in the autumn before finishing his military training in January.
William, 26, is said to be facing the fresh challenges with optimism but is determined to mould his own future and take time to learn his own strengths rather than have everything mapped out for him.
He will move gradually into the role of a working royal, taking on more and more duties and charity patronages as time goes on.
For the first two years, he will devote much of his time to learning the ropes of being king under the programme devised by his father and the Queen.
Coaching: The training programme is being devised by the Queen and Prince Charles
It will include studying the management of the Duchy of Cornwall, the landed trust he will inherit from Prince Charles when his father becomes king. He is said to have taken on Charles's passion for the environment and wants to learn more about land management.
According to friends and courtiers, William is determined to learn the skills necessary to be a hands-on estate manager. His grandfather Prince Philip runs the Sandringham Estate and is Ranger of Windsor Great Park.
The royal 'apprenticeship' may also involve solo foreign tours from next year, possibly to Commonwealth countries which are currently visited by the Queen and Prince Charles.
Despite the daunting challenges ahead, William wants to go at a 'steady' pace, allowing him to develop an understanding of the way the monarchy and government works.
Study: Prince William will have two years' training to learn the royal ropes
He is said to have agreed, however reluctantly, with the idea that he is the Royal Family's 'star of the show'. He will adopt more charities and wants to get to grips with each one in turn, 'from the ground upwards', said a royal source.
William has already done a whistlestop tour of the Armed Forces, serving the Army then the RAF and now the Navy, and has also done a stint in the City. He also attends centrepiece royal occasions such as Trooping The Colour and the Remembrance Day service.
Speculation continues about whether he will ask his girlfriend Kate Middleton to marry
him, but for the time being he has much to fit in concentrating on his royal career.