There are six (6) main printing processes a detailed explanation of each appears in the sub-menu. The following is a brief overview of each process and the relevant application for its use   

1. Digital Printing: cost effective for short run brochures; posters & variable data printing (VDP)

2. Offset Printing: (sheet & web) business forms; stationery; book; magazines & folded cartons

3. Screen Printing: point of sale (POS) on numerous substrates plastic; fabric; glass etc

4. Flexographic Printing: flexible packaging for food industry

5. Letterpress Printing: mainly used for embellishment i.e: foil stamping & embossing

6 .Gravure Printing: long run magazine production 

Print Communication Video - Printing Industries Association of Australia (PIAA) 

http://www.skillsone.com.au/Industry/5/Manufacturing/Video/255/0/Printing-is-not-just-black-and-white/