Portré egy boldog és intelligens férfi professzor, kutató vagy szerző érzés magabiztos egy nagy mosollyal. Egyetemi oktató és irodalomtanár egy könyvespolc előtt. - Stock felvétel és videó

Animation of Caucasian man standing with hands on hips then holding his head in pain, with bookshelves in a library in the background, digital composite

Animation of book week text over caucasian female student holding book in library. book week and reading concept digitally generated video.

Portrait of a smiling Asian female student wearing a blue hijab studying in a library, looking at camera and wearing casual clothes, in slow motion

Animation of clouds and markers moving over happy school children with books. children's book day, reading and education concept digitally generated video.

An Asian female student wearing a yellow hijab studying in a library, sitting on the floor with books and using laptop, wearing casual clothes

Animation of icons of school items moving over female teacher and schoolgirl talking and reading book in library in background. Education back to school and schooling concept digital composite.

Face portrait of stressed mature man feeling tired, overworked, suffering from burnout. Closeup headshot of frustrated, annoyed businessman standing alone in office and feeling angry while listening.

Portrait of happy laughing business man looking joyful inside a bright room with copy space. Closeup of male entrepreneur standing alone in an empty office. Face of a cheerful adult with glasses.

4k video footage of a young woman using a digital tablet at a convention center

Portrait of one mature business woman with short hair smiling while standing in a restaurant alone. Face of happy white woman in front of blurred background looking kind and friendly.

Active senior woman meditating during a fitness class in a yoga studio. Calm, relaxed and focused lady feeling zen while exercising and praying quietly for harmony, stress relief and peace of mind.

4k video footage of an attractive young businesswoman sending a text message while at work.