In November 2007 his book ‘Endless Consciousness’ (Eindeloos Bewustzijn) was published in The Netherlands, which is a bestseller with more than 155.000 copies sold (27th edition). His book was nominated for the ‘Book of the Year 2008’ in the Netherlands. His book was published in Germany in 2009, and it has been published in the English language by Harper Collins in 2010, entitled: Consciousness beyond Life. The science of the near-death Experience, and in the same year the book received the 2010 Book Award van de Scientific and Medical Network. In 2011 the Polish edition was published, the Spanish translation was published in 2012, and in 2012 his book was also published in France. In 2015 the book was also published in Latvia, in 2017 the book was published in Italy, and in 2019 the book was published in Hungary. Recently in 2020 the book was published in China, and in 2021 it was published in Russia. By now about 350.000 copies have been sold worldwide.