E.T.A. Hoffmann (1776-1822) is celebrated for his supernatural fiction such as 'The Sandman' as well as his musical achievements, notably the opera Undine. This book offers a concise yet comprehensive introduction to Hoffmann as a Romantic writer, composer and public figure. It follows his life as a lawyer, theatre director and senior judge in Berlin, where he clashed with authorities over their persecution of student radicals. Drawing on Hoffmann's personal writings and contemporary recollections, it also highlights how historical events like Napoleon's invasion disrupted his career. By combining his literary and musical contributions, the book presents Hoffmann as a multifaceted artist whose inventiveness, both comic and spine-chilling, remain influential today.