Chris and Trish Meyer recently posted some tips on orienting yourself in After Effects 3D.
If you're an advanced user (aren't we all), be warned, you're entering known space on 3D Space, Cameras, and Lighting in 3D. And the Photo Filter effect.
CMG Hidden Gems: Chapter 13 - 3D Space covers the basics of working with 3D layers in After Effects and includes moving, rotating and animating layers in 3D space, offsetting their anchor point in Z, as well as auto-orientating layers along a 3D path. Also covered is using the Composition’s 3D Views, View Layouts, and Axis Modes, along with the rendering order when mixing 2D and 3D layers.
CMG Hidden Gems: Chapter 14 - Camera covers creating and animating a camera, including creating camera rigs and taking advantage of auto orientation, as well as showing how to cut between multiple cameras. They conclude by discussing the camera’s parameters in more detail, including how to fake focus and depth of field effects.
CMG Hidden Gems: Chapter 15 - Lighting in 3D discusses the different types of lights and their parameters, how lights interact with layers and their Material Options, the many secrets of shadows, creating gels and gobos, faking reflections, adjustment lights, projection lights, and using 3D lights to re-illuminate already-shot 2D footage.