Printing design
Need to learn some printing knowledge, such as the design of business cards, VIP cards, leaflets (also called DM sheets), posters, POP, etc.
image design
Enterprise VI, logo design, font design, this kind needs to have a very skilled grasp of vector graphics software to be competent.
packaging design
You also need to learn professional knowledge such as product packaging materials, shapes, sizes, and knife molds.
software tool
You need to master Photoshop(PS), Illustrator(AI), CorelDRAW(CDR), CINEMA 4D(C4D) and other software tools.
Printing knowledge
Need to know about bronzing, silver stamping, UV printing, die cutting, paper types such as iced white paper, special paper, eggshell paper and so on.