I got it at a local stationery store. It’s Korean brand Morning Glory. But I think stationery store and even stores that sell school supplies often have these empty vocabulary books. I used them in primary school when I was learning English.
Build your first three . Vocabulary Books are designed with learners of all ages and abilities in mind. Whether your students have limited oral and reading vocabulary or are English Language Learners, vocabulary words are reinforced in context through real world themes featured in each book. The high interest themes will instantly engage students as they build key vocabulary for everyday use.