| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1990 | 978-1-879264-00-7 | Susan Stephenson | Michael Olaf's Essential Montessori: A Guide and Catalogue for Montessori Education from Birth, at Home and at School |
| 1998 | 978-1-879264-02-1 | Susan Stephenson | The Joyful Child: for Birth to Three Years (Michael Olaf's Essential Montessori Series) |
| 2013 | 978-1-879264-10-6 | Susan Mayclin Stephenson | The Joyful Child: Montessori, Global Wisdom for Birth to Three |