J.K. Rowling, born in 1965 in England, is a renowned author best known for the Harry Potter series, which chronicles the adventures of a young wizard fighting against the dark wizard Voldemort. Her writing journey began during her time in Portugal, where she found time to create the Harry Potter character while facing personal challenges. The Harry Potter series, published from 1997 to 2007, has had a profound cultural impact and continues to be celebrated worldwide.