Profesor de pelo gris sentado en el escritorio en la sala de conferencias vacía y el uso de ordenador portátil - Foto e imagen de stock

Grey hair professor sitting in empty lecture room and looking at laptop

Senior lecturer in empty lecture room holding laptop and looking at camera

Grey hair professor sitting in empty lecture room with crossed arms

Smiling grey hair professor sitting in empty lecture room

Grey hair professor talking by smartphone and looking at laptop

Smiling grey hair professor sitting on desk in empty lecture room and talking by smartphone

Grey hair professor stretching in empty lecture room

Grey hair professor working with laptop

Businessman having a coffee break in the office.

Handsome senior writer in tweed suit working with typewriter

Senior writer looking at photo in frame at his workplace

Close-up shot of senior writer at workplace taking book from stack

Adult son using laptop and senior father reading business newspaper at home

Cropped shot of senior writer putting on his vintage watch at workplace

Serious senior writer putting on his vintage watch

Thoughtful senior writer working with laptop

Pensive mature teacher in glasses holding book and paper cup while looking at window