What is the pen name of British author Madeleine Wickham?

Madeleine Wickham is a British author who writes under the pseudonym Sophie Kinsella, creating a distinct identity for her popular women's fiction. The Sophie Kinsella brand became famous for the bestselling "Shopaholic" series, which follows the humorous adventures of a shopping-obsessed protagonist. Using a pen name allowed her to separate her commercial success from her earlier literary work written under her real name.