Learn InDesign One Feature at a Time
http://indesignsecrets.com/learn-indesign-one-feature-at-a-time.php

Levine, Bob
InDesign Secrets
2009

Abstract:

There’s simply no way to learn InDesign (or any other major application) all at once. If you’re a frustrated newcomer to InDesign, or even if you’ve been using it for some time and want to expand your knowledge, here’s a suggestion: Set aside about 15-20 minutes every day to learn the basics of one feature. It doesn’t really matter what that feature is.