Encyclopedia of Child Development for 1-Year-Olds: By Age (Education Technology MOOK 0, 1, and 2-Year-Old Infants' Development Encyclopedia) Supervised by Kazuko Imai ◎ I previously purchased this on Mercari, looked through it a few times, and then stored it. ◎ The DVD is unopened. ◎ There is a small stain on the last page. Supervised by Kazuko Imai, a teacher of infant care, and I love her warm perspective on childcare(^^) ※ For those who understand that this is a used item, thank you in advance(^^)