Happy Grammar is a four-level series designed for emergent students of English, and it focuses on fundamental grammar structures. The aim of the series is to teach the beginning principles of grammar, correct usage, and composition. The books explain elementary grammar theories with helpful illustrations and photographs. The kid-friendly layout and interesting activities encourage students to participate. The series can be used at home or in the classroom, and it contains an abundance of useful exercises which give students the opportunity to consolidate what they have learned.