【Official Book for the 10th Anniversary, with CD】 I bought two copies when it was released, and have kept one unused. It's still in its original plastic wrap. I thought it was a waste to leave it untouched, and I hope it will reach another fan. Kobukuro Official Book - Title: Kobukuro Supervised Recording & Tour Official Book 10 YEARS ANNIVERSARY - Included: With CD - ISBN: 978-4-636-83969-9 - Price: 2900 yen Thank you for looking.