Caucasian businessman working late in the office and feel headache. Tired Freelancer have a problem with red eyes. Blue screen in night animation of numbers science formula
Caucasian businessman working late in the office and feel headache. Tired Freelancer have a problem with red eyes. Blue screen in night animation of numbers science formula
Intelligent Business Man with Glasses Working On Computer at night
Young student solving challenging math equation on blackboard, with a smile. Smart, clever, intelligent scientist concept.
smart man with glasses is looking at screen of notebook and reading news or data, closeup portrait
Close-up of young professional deep in thought at work
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Close up of a raven as feathers blow in the wind in slow motion.
World-famous scientist, theoretical physicist, Nobel laureate, creator of theory of relativity Albert Einstein
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Handsome Caucasian young male teacher of chemitry subject standing in with pupils and showing chemical experiment with liquids. Children
Portrait of happy smiling businesswoman walking in summer park holding formal jacket on shoulder. Portrait of carefree successful Caucasian businesswoman on break outdoors.
African American man waits standing against office building
Talented individual solving math problem in classroom setting
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Professional author and librarian working on new notes in a public library, focused on academic resources and guidance for success. Woman
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Woman tutor reading a book and doing a brief to complete her notes, creating accurate learning materials for her private lessons and
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Close up of a raven as its beard blows in the breeze in slow motion.
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Rude woman answering a phone call in the library and disturbing people, being very noisy. Clients asking her to keep quiet, losing focus and
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Teacher preparing notes and learning materials for a teaching session in an academic environment. Intelligent professor tutoring with
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African american tutor preparing documents and learning materials for teaching session in school library. Clever professor providing
Low angle side view of Caucasian businesswoman with disability passing over documents to African American man, they shaking hands
Serious old man with well-groomed beard in glasses taking away the phone and ipad from his surprised grandchildren and explaining why it is important to read books
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African american positive librarian working in a peaceful public library, offering guidance, mentorship and academic expertise to students
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Confident tutor reading her notes and preparing teaching materials at a library desk, showcasing her dedication to pedagogy and mentoring
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Portrait of african american librarian working in a peaceful public library, offering guidance and academic expertise to students. Woman
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Portrait of a confident librarian working on her laptop in a public library, providing academic resources and guidance. Specialist
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Librarian completing notes on learning materials next to isolated display, help students with academic success and preparing for tutoring
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Rude woman answering a phone call in the library and disturbing people, being very noisy. Clients asking her to keep quiet, losing focus and
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Professional author and librarian working on new notes in a public library, focused on academic resources and guidance for success. Woman
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African american professor preparing her learning materials and resources in the library, leveraging expertise to mentor scholars and create
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African american librarian working with academic resources next to copymanaging learning materials within the public library database. Tutor
Confident proud smart man in his 30s or 40s pointing at himself acknowledging his achievement at a job well done solving a complex problem
Student walking through library while reading book, camera follows. Low angle shot.
Focused professional working on laptop in modern office
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Smiling students sitting at desk in modern and raising hands during geography lesson. Caucasian pupils getting education at elementary
Young African American businesswoman working at rooftop restaurant
Cheerful young woman in glasses showing book in vintage coffee shop
Esteemed senior bearded man holding a lot of books in his hands and posing on camera on the bookshelves background
Focused businessman typing on laptop at desk in office
Young Startuper Discussing Business Idea Online
Siblings playing chess at home. Preteen boy and girl sitting at table and playing chess together while staying at home during quarantine
Scientist using Vr Technology Holographic Screen Hud Panel, Intelligent Medical Disease Analysis And Research
Close up of a confident girl with curly hair wearing with reading a book in the library
Cheerful African American smart woman talking on phone standing at whiteboard indoors. Portrait of confident lady discussing business idea smiling. Slow motion.
Young Asian woman surfing internet on tablet in a sunny garden
Tilt up slowmo of two adult pensive Caucasian men looking at chessboard while thinking of move playing game of chess indoors
Closeup business woman correcting notes on sticker board indoors. Intelligent lady organizing brainstorm data on wall in modern office. Female professional enjoying work in hipster office.
Mature businessman preparing for job interview in office