This series of 6 workbooks is especially written for students aged 6-12 in countries where English is taught as a first language. It is equally useful for junior high school students who learn English as a foreign language. Each workbook contains approximately 20 units, organized according to essential themes which are central to everyday life. Key vocabulary for each unit is carefully selected with the students’ age in mind. Concise explanation is provided for each vocabulary item. Students’ knowledge is further reinforced through the accompanying exercises at the end of each unit.