I have been using Camtasia for many years at work to make tutorials and video docs. I would highly recommend it. The alternative is software called screenflow

I have been using Camtasia for many years at work to make tutorials and video docs. I would highly recommend it. The alternative is software called screenflow. If you have a MacBook, there is a way to do it with QuickTime for free, but you do not get all the integrated post production tools.