General Incorporated Foundation All Japan Information Learning Promotion Association Published in 2015. - Title: My Number Practical Skills Certification Official Textbook - Author: Toshikuni Bando - Publisher: JMAM - Price: 2,500 yen I'm selling this to someone who can use it, as it has been on the bookshelf almost unused. It's been a while since I bought it new, but it looks to be in good condition (⁎ᴗ͈ˬᴗ͈⁎) I didn't see any writing at a glance, but I apologize if I missed anything. Only those who understand are welcome to purchase.