Vanhempi luennoitsija tyhjässä luentosalissa huutaen kädet ylhäällä - Kuvapankin valokuva ja kuva

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

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

Senior lecturer in empty lecture room screaming and looking at laptop

Grey hair professor sitting in empty lecture room with crossed arms

Grey hair professor looking at laptop

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

Smiling grey hair professor sitting in empty lecture room with laptop

Smiling grey hair professor sitting in empty lecture room

Happy grey hair man watching on laptop at home and celebrate win a bet with a gambling, soccer bet, sports gambling

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

Thoughtful senior man looking at laptop

Handsome grey hair man rubbing eyes at home

Pensive handsome grey hair man thinking and looking at chessboard at home

Cropped image of grey hair man using laptop on sofa at home

Handsome grey hair man reading business newspaper on sofa at home

Bearded senior writer drinking coffee at workplace