P A R T VIII
Appendix A Covers the essential steps of upgrading a Drupal site from Drupal 6 to Drupal 7 and introduces its twin alternative, data migration.
Appendix C focuses on the rendering system, or Render API, one of the major innovations in Drupal 7, and how it can benefit site builders.
Appendix D gives tips on how to approach graphical design for a site from a Drupal perspective.
Appendix E explains Drupal's accessibility enhancements and helps show you what practices to follow ...