Mark Christiansen has created visual effects and animations for feature films, television, computer games, and on behalf of an array of high-technology companies. His recent work for the animation and special effects studio The Orphanage includes The Day After Tomorrow and films by Robert Rodriguez, and he has also created graphics for documentaries produced by HBO and The History Channel.
Adobe's After Effects development team named Mark its number-one beta tester and hired him to create tutorials and other materials for the latest release. A contributing editor for DV Magazine, he has written extensively on After Effects, including After Effects 5.5 Magic (with co-author Nathan Moody) and the previous edition of this book. He has lectured on After Effects and been a guest speaker at NAB, DV Expo, and GDC, as well as user group meetings throughout the San Francisco Bay area.