What is the best resolution for printing you illustration and art piece

What is the best resolution for printing you illustration and art pieceResolution and Size Guidelines for Artists and illustratorsFor best results, your image files should contain 300 dpi (for best result)of un-interpolated resolution at final print size. *So basically you have to set up your working file size at 300 dpi if you plan to print it.Scanning your drawing- your scans need to be large