These are excellent resources for learning the WordPress Admin Area (AKA Administration Screens). I first published these resources for my WordCamp Grand Rapids 2012 presentation: The WordPress Admin Area: A Guided Tour. This post has since been updated.
- iThemes video tutorials
- WPBeginner video tutorials (requires free account)
- WordPress Codex: Administration Screens
- Getting Started with WordPress, iThemes ebook
- WordPress for Dummies books (see WordPress books on WordPress Resources)