Japanese translation of Mark Solms’ book ‘The Hidden Spring’ is now available. Home > News & Researches > Japanese translation of Mark Solms’ book ‘The Hidden Spring’ is now available.2022-08-24 by Ross Balchin We are pleased to announce that through the hard work and dedication of NPSA member Dr Norifumi Kishimoto, a Japanese translation of Mark Solms’ book The Hidden Spring is now available. The translated book can be purchased here.