This spellbinding book takes readers on a journey through the Hogwarts curriculum, including Herbology, Defence Against the Dark Arts, Astronomy, Divination and more. Discover the truth behind making the Philosopher's Stone, create your very own potion and uncover the secret of invisible ink. Learn all about the history of mandrake roots and dragons, discover what witches really used their brooms for, pore over incredible images of actual mermaids and read about real-life potions, astronomers and alchemists. The perfect gift for aspiring witches and wizards and any Harry Potter fan. Celebrating twenty years of Harry Potter magic, and produced in association with the British Library to support their major exhibition, Harry Potter: A History of Magic.