Νεαρός στέκεται μπροστά από το μαυροπίνακα με λάμπα φωτός που πάνω από το κεφάλι - Φωτογραφίες & Εικόνες Αρχείου

Young man standing in front of chalkboard with light bulb drawn above his head

Young businessman standing in front of chalkboard with light bulb drawn above his head

Young businessman standing in front of chalkboard with light bulb drawn above his head

Young man standing in front of chalkboard with light bulb drawn above his head

Young businessman standing in front of chalkboard with light bulb drawn above his head

Young man standing with light bulb drawn above head

Young businessman standing in front of chalkboard with light bulb drawn above his head

Young businessman standing in front of chalkboard with light bulb drawn above his head

Young man standing with light bulb drawn above head

Young businessman standing in front of chalkboard with light bulb drawn above his head

Young businessman standing in front of chalkboard with light bulb drawn above his head

Happy redhead student with broad smile in eureka moment. Creativity and problem solving. Clever boy on background of grey wall with idea lightbulb sketch drawing overhead. Brainstorming concept

Young man holding a book in front of him, raised his hand, the idea

Redhead student thinking about some problem. Clever boy on background of grey wall with idea lightbulb sketch drawing overhead. Young businessman wears shirt and suspenders. New idea generation.

Young man holding a book in front of him, raised his hand, the idea

Redhead student thinking about some problem. Clever boy on background of grey wall with idea lightbulb sketch drawing overhead. Young businessman wears shirt and suspenders. New idea generation.

Young man holding a book in front of him, raised his hand, the idea

Young man holding a book in front of him, raised his hand, the idea

Pensive businessman with lamp head on concrete background

Young man holding a book in front of him, raised his hand, the idea

Redhead student thinking about some problem. Clever boy on background of grey wall with idea lightbulb sketch drawing overhead. Young businessman wears shirt and suspenders. New idea generation.