Like engraving, gravure is a form of intaglio printing that produces fine, detailed images.
Likeflexography, gravure printing predominates in the high-volume printing of packaging, wallpaper and gift wrap.
Although less common, it also works for printing magazines, greeting cards, and high-volume advertising pieces.

Lifewire
The cylinder is etched with cells of different depths.
These cells hold the ink that is transferred to the substrate.
The dimensions of the cells must be precise because the deeper cells produce more intensive color than shallow cells.
Photogravure
Photogravure is a variation on engraved-cylinder gravure printing.