Grey hair professor looking at blackboard - Stock Photo & Image

Smiling senior lecturer standing in classroom and looking at camera

Smiling grey hair professor sitting on table with laptop

Grey hair professor sitting on table in lecture room and holding book

Smiling grey hair professor sitting on table in lecture room

Grey hair professor holding paper plane in lecture hall

Smiling grey hair professor standing in lecture room and looking at camera

Grey hair professor holding piece of chalk and looking at blackboard

Try this. what angle you look. geometric shapes. high school modern education. senior man teacher use ruler while drawing. tutor man in glasses draw with ruler on blackboard. back to school.

Happy bearded speaker in glasses talking near microphones and brick wall

Handsome man looking at cup with drink near books and digital tablet

Bearded speaker in glasses standing near microphones and brick wall

Senior man in stylish tweed suit looking away in front of white brick wall

Focused senior writer reading manuscript with magnifying glass

Senior ayurveda coach pointing at human chakras system on flip chart in front of digital camera

High angle view of serious mature businessman sitting on office table and looking at camera

Positive and bearded spiritual guru gesturing and looking at camera in park

Full length view of man in suit and eyeglasses sitting on high stool and reading newspaper on dark grey

Bearded senior businessman in eyeglasses reading blurred newspaper isolated on dark grey