This is a book explaining the research results on dynamic equilibrium. I read it once, but I put a cover on it and read it carefully. I've inspected it as an amateur, and I don't see any stains or damage. - Title: New Edition Dynamic Equilibrium: Why Life Exists Where It Does - Author: Shinichi Fukuoka - Publisher: Shogakukan - Price: 840 yen - ISBN: 9784098253012 - New Chapter Added: Added a new chapter based on the latest research results Thank you for looking.