LONDON — Writer Sophie Kinsella, whose effervescent rom-com “Confessions of a Shopaholic” sparked a millions-selling series, died Wednesday, her family said. She was 55 and had been diagnosed with brain cancer.

The family said in a statement on Kinsella's Instagram account that "she died peacefully, with her final days filled with her true loves: family and music and warmth and Christmas and joy.

“We can’t imagine what life will be like without her radiance and love of life,” the family said.

Kinsella, who also published under her real name, Madeleine Wickham, announced in April 2024 that she had been diagnosed more than a year earlier with glioblastoma, an aggressive form of brain cancer.

“I did not share this before because I wanted to make sure that my children were able to hear and

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