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 B gets you started with profiling Drupal to identify, and so be able to fix, performance bottlenecks. See also Chapter 27 on scaling Drupal.

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 ...

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