Hermione Jean Granger is a fictional character and one of the three protagonists (the other two being Harry Potter and Ron Weasley) in J. K. Rowling's Harry Potter series. She initially appears in the first novel, Harry Potter and the Philosopher's Stone, as a new student on her way to Hogwarts. As the series progresses, she becomes close friends with Harry Potter and often uses her quick wit and encyclopaedic knowledge to help him. Rowling has stated that Hermione resembles her at a younger age, with her insecurity and fear of failure