A nice overview of how a commercial printing process works for quality commercial printing by commercial printing presses. Progressive Printing, in Springfield, VA shows us in this educational YouTube video how they estimate, receive, prep (Preflight) and output customer print-files for commercial printing of offset lithography. Great watching for graphic designers, digital layout artists, marketing departments for the commercial printing market or anyone that purchases full color print jobs for color commercial printing lithographic work really:

This is a Komori printing press they use, btw. 5,000 to 11,000 impressions per hour!  Also impressive is Markzware’s commercial printing software products for preflight, data conversion, and more.