Magabiztos professzor ül az asztalnál, jegyzeteket ír és könyvet olvas. - Stock fotó és kép

Professional academic researcher sitting at desk and studying, university and knowledge concept

Confident academic professor sitting at desk and posing, he is reading books

Professor working in his office, he is writing and reading books, research and knowledge concept

Confident professor sitting at desk, he is writing down notes and reading a book

Corporate businessman sitting at office desk, he is cleaning his glasses and typing on a typewriter

Confident academic professor sitting at desk and posing, he is reading books

Vintage journalist working in the office: he is sitting at desk and typing on a typewriter

Vintage undercover spy stealing files in a filing cabinet late at night, security, data theft and crime concept

Wildlife photographer exploring a forest and taking pictures with his professional camera

Professional wildlife photographer exploring a forest, he is checking the camera settings

Young woman sitting at desk and working from home, she is typing on her laptop

Happy mature man walking outdoors in the forest, healthy lifestyle concept

Confident man with black polo posing and looking at camera, brick wall on the background

Sick woman with cold and flu at home, she is holding a pill bottle and checking medicine information