businesswoman doing presentation

30s adult american blond blue board briefing business businessman businesspeople businesswoman businesswomen casual caucasian cheerful clothing colleagues color colorful conference course coworkers demo demonstrate demonstrating demonstration diagram drawing education european explaining face female females good green group happiness happy indoor lifestyle male markerboard men mid mood office orange people person photo present presentation presenting seminar showing smile smiling speaking stockphoto success successful team thirties three training vertical vivid white whiteboard women work workplace workshop young