Personal interests.

Prince William playing polo in 2007

Following his parents' examples, William took interest in various causes from a relatively early age. The late Princess of Wales' work with HIV/AIDS aid and prevention, and the Prince of Wales' work with the natural environment and the inner-city disadvantaged, directed William into those areas. He also showed a desire to focus on the needy in Africa, sometimes working with his brother's charity, Sentebale.
On 23 January 2009, it emerged that Prince William had written the foreword to a book for the first time.The cover of Home from War, the autobiography of a soldier from the Prince's regiment who was seriously wounded in a Taliban ambush, notes his contribution.