Author Mark Christiansen (Adobe After Effects CS6 Visual Effects and Compositing Studio Techniques) wants to make Adobe After Effects approachable and useable for all editors. He writes, "Adobe After Effects can enable you to create anything you can imagine. It can also be used to solve common problems with moving footage. But, let's face it, that awesome level of creative and technical power can be downright intimidating. If I had to pick one group that most wants to do more in After Effects, yet avoids even opening the application, it would be film and video editors."
Read some of his tips for diving into motion graphics, simple greenscreen composites, using masks and more here.