Schockierter Mann mit Stift hält Klemmbrett auf grauem Hintergrund - Stockfoto & -bild

Thoughtful man with pen holding clipboard on grey background

Teacher using modern software self education, digital classes

Portrait of handsome young man

A handsome businessman sitting at table and read book isolated on white

Teacher using modern software self education, digital classes concept.

Cropped view of businessman reading book with intellectual property title isolated on grey

Smiling nerd in eyeglasses holding open book isolated on white

Bearded businessman in suit and glasses talking on smartphone isolated on grey

Half-length shot of young businessman in a suit talking on the phone with interrogative look on his face.

Excited nerd having idea while holding open book isolated on white

Astonished businessman in formal wear and glasses pointing away isolated on grey

Astonished businessman in formal wear and glasses pointing away isolated on grey, banner