Andrew Morton’s biography of the sisters Elizabeth and Margaret covers well-trodden ground but raises some interesting points along the way.

The clichéd assessment 'compulsively readable' seems the most appropriate response to Andrew Morton’s 385-page book on the Windsor sisters, Elizabeth and Margaret. Much of this material will already be familiar, though perhaps given a different twist.

... an earnest examination of the yin-and-yang, Jackie-and-Marilyn dynamic between Queen Elizabeth and her late younger sister, Princess Margaret. The result is less deliciously inspired.

Morton would prefer to define the queen and her late sister in terms comfortable to Us magazine: temperamental opposites who, despite their differences, came together for a higher purpose. What that purpose was and whether it was worth the sacrifice of these two limited and sometimes desperate individuals is a question that seldom floats into view.

... fascinating.

Morton, an accomplished royal writer who doesn’t descend into the hackneyed phrases of some of his rivals, is best known for being Princess Diana’s Boswell.

Veteran correspondent Morton zeros in on the relationship between sisters Queen Elizabeth and Princess Margaret. He covers aspects of their upbringing from infancy to adulthood, closely documenting their celebrated but ultimately lonely lives.

Biographer Morton examines in this vibrant history the 'push-and-pull between... deep love and primal jealousy' that bonded Queen Elizabeth II and her younger sister, Princess Margaret.