However, there have been times when she got caught.
The book claimed the incident happened while she was visiting the David Hockney exhibition at the Royal Academy.
It claimed that when one member of the public spotted her, the princess reportedly replied: “I miss my history of art. It’s what I do to get my fix.”
Princess Kate studied Art at the University of St Andrews and graduated with a 2:1 degree in 2005.
This is also where Kate met her future husband Prince William in 2001.
Her artistic talents were seen in 2017, when Kate drew the cover of the order of service for her sister Pippa’s wedding with James Matthews.
At his wedding speech, James praised the Princess of Wales, saying: “To Pippa’s sister Kate, such ability – a beautiful drawing of St Mark’s church in the order of service.”
Kate has also done other work in the arts, including selecting photos in 2018 for the National Gallery’s Victorian Giants: The birth of art photography exhibition and taking photographs of members of the Royal Family, including her family.
