Peachpit Press has announced the release of “iMovie 3 for Mac OS X: Visual QuickStart Guide,” authored by Jeff Carlson. The “task-based guide that allowed legions of Mac users to dive head-first into the world of digital movie-making is back to take a fresh look at Apple’s newly revamped (but still free) video editing software.” Peachpit also released “Keynote for Mac OS X: Visual QuickStart Guide,” written by Tom Negrino. The book “gets readers quickly up-to-speed on the powerful presentation software through detailed step-by-step tasks and hundreds of screenshots.” Both titles sell for US$19.99.