Each book in Levels Three through Seven presents exercises that were written so that everything the students need to know to do the work is in the assignments. Most students take one year to complete a level. Level 7 is designed for students of any age who have finished Writing Strands 6. These exercises expand on the same types of writing experiences as are found in Level Six but present a much more sophisticated approach to the writing. Also introduced are a book report and an argumentative essay.