What are the types of graphic design companies?

Currently common graphic designs can be summarized into ten categories: web design, packaging design, DM advertising design, poster design, print media advertising design, POP advertising design, sample design, book design, publication design, VI design.

These are the knowledge you need to design and learn. I am engaged in graphic design, and PS is the basic software for design, which is used for retouching pictures. Regardless of photography, graphics, or interior design work, PS is needed. In addition to basic PS, you also need to learn basic vector software Illustrator or CorelDRAW, and typesetting software PageMark and indesign. If you go deep into graphic work, you need to be able to communicate with other designers, so the Three Musketeers of the web (including FLASH), CAD, 3D, etc. are all indispensable. Secondly, you must have hand-drawing skills, and draw more sketches when you have nothing to do so that you can improve your design thinking. The more you perfect your design work, the more you can do, and the more you do, the more you gain. In fact, learning depends on human effort. You must believe in yourself and rely on your own hobbies and efforts.