New book: ‘Spelen met oneindigheid’

Hans Zantema has published a book (‘Spelen met oneindigheid, verrassende figuren en patronen’, in Dutch—English translation is work in progress) about infinite sequences and their visualisations, see this link. An interview with Hans can be found here. The interview also contains a puzzle; by submitting your answer to this puzzle, you have a chance to win one of three copies of the book.