- Title: What to Learn from Age 50 Onward - Author: Akira Ikegami - Publisher: PHP Business Shinsho - Price: 1000 yen Thank you for looking. Ikegami-san's writing is easy to read! It was a book full of empathy and discovery. I've finished reading it, so I'm offering it for sale. It was in my bag, so there are some creases (see photos), but I read it with a cover on, so it's in good condition.