A Beginner's Guide to Transfiguration

A Beginner's Guide to Transfiguration by Emeric Switch was a standard text book set by Hogwarts School of Witchcraft and Wizardry for first year students for Transfiguration classes. During Ginny Weasley's first year at Hogwarts, Lucius Malfoy managed to slip Tom Riddle's diary into her second copy of the book in Flourish and Blotts, leading to the re-opening of the Chamber of Secrets.

Appearances

 * Harry Potter and the Philosopher's Stone (First appearance)
 * Harry Potter and the Chamber of Secrets