An introductory tutorial for programmers that have done programming in the past. These tutorials will introduce them to Mac/iOS Software development. These segment of video tutorials are for those interested in learning Objective-C for iOS and Mac OS X.
There is also a beginner series for Objective-C that will teach the language at a slower pace for those that don't have experience programming. Example: Beginner Tutorials are generally an hour long; while the advanced tutorials are about 25 minutes long.