Terban's humorous books on language arts skills and wordplay are used in schools all over the United States and abroad. They have even made it as far as Shanghai University in China, where they are used to teach English to adults. His Scholastic "Dictionary of Idioms" has been translated into Japanese and Korean. Two of his books were turned into early computer games. He and his wife Karen, a former special education instructor, also wrote two activity books for teachers. Three of his Scholastic books, "Checking Your Grammar", "Dictionary of Idioms", and "Dictionary of Spelling", have sold well over one million copies each. In 2005, the Society of Children's Book Writers and Illustrators, an international organization of over 30,000 creators of children's books, voted Mr. Terban their Member of the Year for his many contributions to the Society and children's literacy.