Publishing House De Gouden Kroon was founded by Sonia in 1995. She did this, amongst others, to be able to publish the Aquarian mysticism, unhindered by commercial constraints. The books written by Sonia, cards and posters published so far, can be found in the catalogue on this website.

Address of the publisher:

Publishing House De Gouden Kroon

Van Beethovenlaan 69-b
2253 BE Voorschoten, the Netherlands
Tel.: 0031-715622281 (Mon-Thurs from 9.15-13.00 hrs)
Fax: 0031-715623915
E-mail: info@degoudenkroon.nl