Schöner junger Mann steht mit Kreidezeichnung einer Glühbirne gegen Tafel. - Stockfoto & -bild

Handsome young man is standing against blackboard with chalk drawing of light bulb.

Handsome young man is standing against blackboard with chalk drawing of light bulb.

Handsome young man is standing against blackboard with chalk drawing of light bulb.

Side view of a pensive young businessman with a beard. He is wearing a suit and a tie and standing with crossed arms. Question marks and a light bulb on a blackboard.

Businessman thinking and drawing lamp on wall

Young smiling man having a good idea

I got it. Thoughtful young man holding hand on chin and looking up while standing against blackboard with chalk drawing of light bulb

Portrait of pensive young caucasian businessman with beard wearing dark suit standing near concrete wall with question marks and lightbulb drawn on it. Mock up

Young smiling man having a good idea

New idea concept. Man holding a good idea.

New idea concept. Man holding a good idea.

I have an idea! Young woman is standing against blackboard with chalk drawing of light bulb.

Successful business man drawing an idea on glass window at office.

I have an idea! Young woman is pointing up while standing against blackboard with chalk drawing of light bulb.