Κομψό αρσενικό ομιλητής δείχνει παρουσίαση σε λευκό πίνακα. Πορτραίτο ενός αρσενικού λέκτορα που δείχνει τον πίνακα και την προπόνηση. - Φωτογραφίες & Εικόνες Αρχείου

Teacher standing at whiteboard in lecture hall. Male lecturer with formal clothes holding marker and explaining in front of a whiteboard.

Presenter standing in front of a blank paper whiteboard. Male lecturer with glasses pointing at flip chart board in the office.

Caucasian male executive in smart casual apparel working with flip chart analyzing information ideas, happy successful man speaker search decision solutions feeling good in coworking boardroom

Professional analyst writing ideas on mock up flip chart thinking during working time in office interior, Caucasian smart casual coworker making executive decision in boardroom with copy space

Male lecturer with marker looking at a whiteboard. Lecturer wearing glasses standing in front white board and holding marker.

Business, people and corporate concept - team of startuppers with scheme on flip chart working at office

Young lecturer standing in front of the whiteboard. Teacher pointing at empty white board and holding marker in lecture hall.

People are working on the project. Men and women in suits sitting at the table. Businessman draws a graph on the stand.