Students learn and review writing skills and grammar as they search for the errors in each exciting passage. Editing exercises teach students to identify and use the techniques of good writing. Specific skills are defined, utilized, and reviewed, with many examples. Complete Glossary of Writing Skills included, plus vocabulary and much more. 45 lessons in Vol. 1 and 45 more in Vol. 2 for a total of 90 lessons. This advanced series is for 7th grade and up.