Buckingham Palace: The Interiors, by Ashley Hicks (Rizzoli)
Articles:
http://www.galeriemagazine.com/banksy-reveals-installed-shredder-in-girl-with-the-red-balloon-sothebys/
https://www.1stdibs.com/introspective-magazine/buckingham-palace/
https://www.vogue.in/content/buckingham-palace-never-before-seen-rooms/?utm_source=Daily&utm_medium=email
https://insight.randomhouse.com/widget/v4/?width=600&height=800&isbn=9780847863198