Knowing the Ma'sumin: Imam Husayn (a) is part of the series of workbooks on the Ma'sumin (a). The workbook activities are designed to teach children ages 8-11 the bigraphical details about Sayyidush Shuhada Imam Husayn (a), his great teachings, examples from his illustrious life, his contribution and the great sacrifice in Karbala. Importance of Majlis-e Husayn, the Day of Ashura and Arba'in are also included in the book.