Get even more value out of your copy of Drupal User's Guide with the following free resources:

Vert - Theme project page
This theme is applied in Chapter 9, the community site case study.

There's a Module for That - PDF download
Summary of the most useful Drupal modules. Complements Chapter 14.

Domicile - Zip package of design files
Build your own copy of the Domicile theme from scratch. Required resource for Chapter 15, Introduction to Theming.

Domicile - Theme project page
Learn how this theme was built in Chapter 15, Introduction to Theming.