Our World 5: Grammar Workbook (American English)

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.