PHP (Computer program language) 2 Bash shell 1 Design principles 1 Digital photography 1 Electronic publishing 1 Email and web 1 HTML (Document markup language) 1 Hypertext systems 1 Internet 1 Layout (Printing) -- Handbooks, manuals, etc. Graphic design (Typography) Graphic arts 1 Mass media 1 Media research 1 Media studies 1 Research 1 Web sites 1 World Wide Web 1 image processing 1