Prince William has finished his three-week stint of work experience at City institutions and landmarks.
Prince William was shown the ropes in the City
The prince said his time at the Bank of England, London Stock Exchange, Lloyds of London and Billingsgate Fish Market had been "very busy".
And he now had a "much better understanding how all the different financial institutions work and how they fit together".
William is due to embark on a military career at Sandhurst in 2006.
The three-week placement, organised by HSBC, is part of a wider programme of work experience aimed at preparing the prince for his future as King and head of the armed forces.
Clarence House said the three weeks were deliberately varied, in order to give him a general overview of the financial sector.
At HSBC he carried out some company analysis, constructing deal tickets and going to client meetings.
During a day at Lloyd's of London, he was shown by specialist insurer Hiscox Plc how the firm underwrites risk, ranging from sportsmen and sporting events through to how risk is assessed for various industries.
At the Bank of England, he heard how the institution plays a central role in the UK's financial system.
His time also included meeting representatives from the London Stock Exchange, the Financial Services Authority, and the law firm Farrer and Co.
He was at the market to see how the Worshipful Company of Fishmongers regulates the fish trade.
The prince came top in a stock picking competition - a competition to choose shares that will perform well - during his three weeks.
'What it's really like'
"Spending every day with people who contribute so much to this country's economy gave me the chance to experience the atmosphere of the City and to see, as best as I could, what it's really like to work there," said William.
"And I won the stock picking competition!"
HSBC's Paul Cattermull said: "William learnt a great deal about our sector as well as the City at large and, I hope, really enjoyed his time with us."
The prince has also worked on a country estate to learn about land management, visited homeless charity Centrepoint and played football at Charlton Athletic FC ahead of taking up presidency of the Football Association.
He will shortly join a mountain rescue team for his final placement.