Joe Buhlig has, with his vast experience in using OmniFocus, put together a comprehensive and complete set of guides for getting the most value out of OmniFocus and GTD in a series of well-produced videos in a course called Working with OmniFocus. Everything from the basic setup to explaining an advanced workflow is thoroughly covered in an easily digestible video format.
Using Joe’s system and his down-to-earth way of describing his setup and workflow, these guides provide a solid foundation from which to build your very own productivity setup in OmniFocus. It’s a solid investment for becoming a master of productivity and efficiency, and it will take your life to the next level.
Check out Working with OmniFocus.