a kid smiling while studying at table

a woman thinking while sitting at a desk

cordial couple studying together at library

a woman thinking while sitting at a desk

a woman thinking while sitting at a desk

a woman thinking while sitting at a desk

education, notebook, object, Asian, smile, white man

a woman smiling at camera while sitting at desk

A girl studying in the library

A girl studying in the library

Studnets gathered at friend's desk for solving problem

Studnets gathered at friend's desk for solving problem

Euro man asleep at desk

A businessman sitting at his desk while being looked at from a magnifying glass

A businessman studying his employees at work

An employee sleeping during work hours

A man sitting in the waiting room while the employees look on

Man using a lumbar cushion while talking on a headset and working on a computer at his desk

Various letter papers of a boy studying

A man looking through books with a magnifying glass

Student studying the English in the classroom

a good student

A man looking at web sites popping from his computer screen.

Various letter papers of a boy studying hard

Sleeping man while studying at the desk