in the library - pretty female student with laptop and books working in a high school library  (color toned image)
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Senior chemistry professor writing on the board while having a chalk and blackboard lecture (shallow DOF; color toned image)
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Senior chemistry professor writing on the board while having a chalk and blackboard lecture (shallow DOF; color toned image)
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In the library - group of college/university students, friends, with books and laptops working in a high school library (color toned image)
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On campus - pretty, female student with books and laptop working while on a college/university campus (color toned image, shallow DOF)
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Pretty young college student studying in the library/a study room at campus (color toned image; shallow DOF)
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Schoolgirl at lesson with opened book against sketch background
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Senior chemistry professor giving a lecture in front of classroom full of students (shallow DOF; color toned image)
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Senior chemistry professor writing on the board while having a chalk and blackboard lecture (shallow DOF; color toned image)
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Senior chemistry professor writing on the board while having a chalk and blackboard lecture (shallow DOF; color toned image)
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Senior chemistry professor writing on the board while having a chalk and blackboard lecture (shallow DOF; color toned image)
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Pretty young college student in a library (shallow DOF; color toned image)
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Three little Halloween witches reading spell above pot
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Little Halloween witch reading conjure above pot
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happy collage  school girl student portrait in  classrom and library
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Pretty, young college student studying in the library/a study room at campus , using her modern laptop computer, writing notes, preparing for exams (shallow DOF)
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Pretty, young college student female college student in a library (shallow DOF; color toned image)
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Pretty, young college student female college student in a library (shallow DOF; color toned image)
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Pretty, young college student female college student in a library (shallow DOF; color toned image)
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Close up of male hand drawing construction project
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Close up of male hand drawing construction project
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Close up of male hand drawing construction project
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Close up of female hand drawing construction project
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Close up of male hand drawing construction project
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Young woman in casual holding opened book with green tree
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Young woman in casual holding opened book with green tree
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Young pretty woman in casual holding opened book
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Young woman in shirt holding book above head
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Woman in casual wear holding opened book in hands. elements of this image are furnished by NASA
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Young woman in shirt holding book above head
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Young man holding huge book above head on one hand
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Young man in casual holding opened book with green tree
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Young man in casual holding opened book with green tree
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Young man in casual holding opened book with icons flying out
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abstract science and  chemical molecule structure on white board in school classroom background
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happy young teens group in school have fun an learning lessons
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happy collage  school girl student portrait in  classroom and library
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happy young teenage boy portrait in school on chemistry classes and library
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Pretty, young female college student using a desktop computer/pc in a college library - burning the midnight oil, working hard toward her goals instead of getting enough sleep (shallow DOF; color toned image)
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Young man holding huge book above head
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