Video
Video is a sequence of moving images typically including synchronized sound. Sometimes sequences of still images with sound or combinations of video, still images, and sound are described as "video". There are many file formats for video and still image/slideshow production and distribution.
Presentation
Presentation is the formal delivery of a message or information to an intended audience utilizing text, image, color, and sound. Presentations may or may not have a live speaker.
e-Writing Instructional Packages
e-Writing
E-writing is the digital creation using text, image, symbol, color, and elements of composition. There are many forms of e-writing, such as comics, illustrated essays, and blogs.
Imagery Instructional Packages
Imagery
Imagery is a 2D visual representation relying on the composition of images, symbol, color, and sometimes text. Digital images are either raster or vector files. There are many methods used in the production and distribution of digital imagery.
Audio
Audio is the composition of sound, music, and/or voice. There are many audio recording and processing applications and file formats used in the production and distribution of digital audio work.