Grammar Books/Grammar Workbooks include additional presentation and practice for grammar topics covered in the Student's Book.

Rob Sved is an EFL author based in Oxford, UK. Over the last 20 years, he has worked as a teacher, publisher, editor and author and specializes in developing materials for young learners. Ronald Scro is an instructional designer, writer, and developer of educational products in video, print, e-learning, and blended instruction. He has created educational materials for adults and children for more than 25 years. Ron is currently a managing partner with Applied Vision, LLC in California, which provides design and development services for corporations and educational publishers.