Yotsuya Gakuin Correspondence Course's childcare worker exam preparation reference books, a total of 5 books including the mini-BOOKs. ⚪︎ Childcare Worker Exam Preparation Course (Educational Principles & Social Welfare) ⚪︎ 2022 Past Exam Questions ⚪︎ Data Collection ⚪︎ Educational Principles & Social Welfare Anywhere Check BOOK ⚪︎ Childcare Psychology Anywhere Check BOOK As you can see in the photos, there are marks and writings, so please understand and purchase accordingly.