My Life – Richard Wagner, 1911, Constable London

Cosima Wagner’s Diaries – Ed. Martin Grego-Dellin & Dietrich Mack, 1980, Collins

Letters of Richard Wagner, ‘The Burrell Collection’ – Ed. John N Burk, 1972, Vienna House

The Wagner Clan – Jonathan Carr, 2007, ISBN 978-0-571-20790-9

The Darker Side of Genius – Jacob Katz, 1986, University Press of New England

Aspects of Wagner – Bryan Magee, Panther, 1968, Granada Publishing

Wagner As I Knew Him – Ferdinand Praeger, 1892, Longmans, Green & Co

Wagner & Nietzsche – Dietrich Fischer-Dieskau, 1976, Sidgwick & Jackson

Wagner’s Ring and its Symbols – Robert Donington, 1963, Faber & Faber

Wagner, Rehearsing the ‘Ring’ – Heinrich Porges, 1876, Cambridge University Press

Why Mahler? – Norman Lebrecht, 2010, ISBN 978-0-571-26079-9

Fact And Fiction About Wagner – Ernest Newman, 1931, Cassell & Co Ltd

Richard Wagner and the Jews – Milton E. Brewer, 1930, McFarland & Co. Inc., ISBN 0-7864-2370-6

Forbidden Music, Jewish Composers Banned By The Nazis – Michael Haas, 2013, Yale University Press, ISBN978-0-300-20535-0