Lesson: Sections of a book; Cover, Title page, Copyright page, Table of Contents, Foreword, Preface, Index, Glossary, and Bibliography When they find the underground library in disarray after a Wiper attack, Ms. Bookhart shows the children about the different parts of books so that they can attempt to reconstruct the destroyed texts. Meanwhile, Chief Humbuckler plans to test the Wiper's jammers and magnetic shield on the User base.