Similar Royalty-Free ImagesFile ID:178885504ByIgorVetushko

Senior lecturer holding piece of chalk and looking away

Senior lecturer pointing on something in lecture room

Senior lecturer leaning on table and looking away

Grey hair professor pointing on something at blackboard

Smiling grey hair professor holding stack of books with apple on top

Smiling grey hair professor holding piece of chalk

Happy senior lecturer buttoning shirt

Smiling grey hair professor holding wooden pointer

Senior lecturer holding book and looking away

Cropped image of senior lecturer holding book and showing one finger up

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

Grey hair professor holding stack of books

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

Grey hair professor pointing on something at blackboard

Thoughtful senior lecturer sitting at table with pencil and notebook

Pensive senior lecturer standing with pencil isolated on white

Smiling grey hair professor sitting on table with laptop

Grey hair professor talking by smartphone and looking at camera

Smiling grey hair professor sitting on table in lecture room

Smiling grey hair professor holding paper plane in lecture hall

Smiling senior lecturer standing in classroom and looking at camera

Senior lecturer holding book and looking away

Senior lecturer protecting himself of falling crumpled pieces of paper

Grey hair professor looking at blackboard

Side view of grey hair professor correcting something at blackboard

Senior lecturer showing idea gesture

Grey hair professor talking by smartphone and looking away

Close-up portrait of bearded senior man in eyeglasses

Senior lecturer holding book and showing one finger up

Grey hair professor standing near stack of books

Senior man by chessboard looking at camera

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

Grey hair professor holding paper plane in lecture hall

Grey hair professor showing fist to students

Grey hair professor using laptop at table in lecture hall

Thoughtful senior lecturer looking down on white

Grey hair professor looking at smartphone in lecture room

Smiling grey hair professor standing with crossed arms

Side view of grey hair professor drawing with piece of chalk at blackboard

Happy senior lecturer standing at wooden tribune isolated on white

Smiling grey hair professor holding paper plane in lecture room

Senior lecturer writing something on blackboard and showing one finger up

Senior lecturer holding book and pointing on something

Smiling grey hair professor holding stack of books with apple on top

Smiling grey hair professor looking at smartphone in lecture room