The Tales of Beedle the Bard by Albus Dumbledore, former headmaster of Hogwarts School of Witchcraft and Wizardry. It is described as a popular collection of Wizarding children's fairy tales, so that while Ron Weasley is familiar with the stories, Harry Potter and Hermione Granger had not previously heard of them due to their non-magical upbringing. The book Hermione receives in Dumbledore's will is a copy of the original edition of the fictional book. It is described as an ancient-looking small book with its binding "stained and peeling in places". In the novel it is also said the book has a title on its cover, written
What Is Mathematics? What Is Mathematics? What Is Mathematics? is a mathematics book written by Richard Courant and Herbert Robbins, published in England by Oxford University Press. It is an introduction to mathematics, intended both for the mathematics student and for the general public. First published in 1941, it discusses number theory, geometry, topology and calculus. A second edition was published in 1996 with an additional chapter on recent progress in mathematics, written by Ian Stewart. The book was based on Courant's course material. Although Robbins assisted in writing a large part of the book, he had to fight for authorship. Nevertheless, Courant