Sophie Kinsella, ‘Confessions of a Shopaholic’ Author, Dies at 55 NYT | Top Stories By: Sopan Deb 11 December 2025 at 00:29 Writing under a pseudonym, Madeleine Wickham cultivated an international following for her series centered on a young woman addicted to shopping. © Sandra Mickiewicz for The New York TimesThe British author Madeleine Wickham in 2024. Under the pen name Sophie Kinsella, she wrote nine “Shopaholic” novels, which sold tens of millions of copies and were translated into dozens of languages.