Verbal: Communication through spoken language
Non-verbal: Communication through body language and facial expressions
Written: Communication through written language or symbols that convey information
Visual: Communication through images, photographs, art, charts, etc.
Communication Skills
Overview from Indeed.com, a top career site
The Beginner's Guide to Professional Communication
A guide to written and spoken/in-person communication skills
10 Tips for Improving your Public Speaking Skills
From the Harvard Extension School of Professional Development
Why It Matters: Teamwork and Communication
Learning module from Lumen's intro to business course