As a result of the widespread interest that has been taken
in my method of child education, certain books have been
issued, which may appear to the general reader to be
authoritative expositions of the Montessori system. I wish
to state definitely that the present work, the English
translation of which has been authorised and approved by
me, is the only authentic manual of the Montessori method,
and that the only other authentic or authorised works of
mine in the English language are "The Montessori Method,"
and "Pedagogical Anthropology."
[Signed: Maria Montessori]