Focus on eformoterol research report of a roundtable meeting held in January 1995 by MichaelRudolf 24 Pages, Published 1995 ISBN-13: 978-1-870490-64-1, ISBN: 1-870490-64-9
Music Mystery, Art and the Human Being by Dr Rudolf Steiner, Matthew Barton, Michael Kurtz Paperback, 196 Pages, Published 2016 by Rudolf Steiner Press ISBN-13: 978-1-85584-526-8, ISBN: 1-85584-526-1
A Road to Sacred Creation Rudolf Steiner's Perspectives on Technology (Rudolf Steiner’s Perspectives on Technology, 1) by Rudolf Steiner, Gary Lamb, Michael Howard, John Bloom Paperback, 400 Pages, Published 2021 by Anthroposophic Press Inc, United States ISBN-13: 978-1-62148-261-1, ISBN: 1-62148-261-8