Sophie Kinsella, author of the bestselling "Shopaholic" book series, has died at the age of 55. Kinsella's family shared news of her death in an Instagram post Wednesday. "We are heartbroken to announce the passing this morning of our beloved Sophie (aka Maddy, aka Mummy). She died peacefully, with her final days filled with her true loves: family and music and warmth and Christmas and joy," the family's statement said, in part. "We can’t imagine what life will be like without her radiance and love of life." Kinsella revealed publicly in April 2024 that she had been diagnosed two years earlier with glioblastoma, an aggressive brain tumor. According to the U.S. Genetic and Rare Diseases Information Center , fewer than 50,000 people in the U.S. have glioblastoma. Symptoms such as headache, n

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