Presenters and trainers need to appreciate the differences to know when to speak, to write or to use both in tandem. Some Differences Speaking creates an immediate output for audiences to see, hear and share. Writing creates text, an output designed to be read by future readers who do not see or hear the author. Writers observe formal rules, striving to be correct in all respects - spelling, grammar, punctuation, choice of words and structure. People find it easier to phone than to write a letter.
Employees prefer to ask how to do something rather than read instructions.
Seeing a play performed is a larger experience than reading the script. Additionally, speakers connect with their audiences via eye contact and physical bearing. This connection is a integral part of spoken communication, providing speakers with immediate feedback to make course corrections or respond to audience queries on the spot. When a speaker connects with an audience both speaker and audience get a jolt of energy. Writing has a different set of strengths and is often epitomized as the language of information.