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Free Knowledge Stock Photos And Images

876,780 matches
Woman sitting at her desk thinking of things to write
Woman sitting at her desk thinking of things to writeFREE
Portrait of teacher holding books
Portrait of teacher holding booksFREE
Empty classroom Stock Photo
Empty classroomFREE
Woman with a book on her head
Woman with a book on her headFREE
Woman reading book
Woman reading bookFREE
Woman sitting at her desk looking at a stack of thick books Stock Photo
Woman sitting at her desk looking at a stack of thick booksFREE
Father and daughter reading a book
Father and daughter reading a bookFREE
Bespectacled woman reading book
Bespectacled woman reading bookFREE
French language concept
French language conceptFREE
Vectors
Woman yawning and stretching while studying
Woman yawning and stretching while studyingFREE
E-learning concept
E-learning conceptFREE
Vectors
Hospital administrator with files
Hospital administrator with filesFREE
Two girls staring at each other angrily. Stock Photo
Two girls staring at each other angrily.FREE
Girl having problems solving the confusing equation Stock Photo
Girl having problems solving the confusing equationFREE
Books with trophy icon Stock Photo
Books with trophy iconFREE
Vectors
3d books
3d booksFREE
Education concept design
Education concept designFREE
Vectors
Time concept. distorted soft melting clock on the old books. with dark toned foggy background. selective focus Stock Photo
Time concept. distorted soft melting clock on the old books. with dark toned foggy background. selective focusPLUS
Boy trying to solve the equation on the blackboard
Boy trying to solve the equation on the blackboardFREE
Book
BookFREE
Vectors
Young woman carrying huge pile of old books
Young woman carrying huge pile of old booksPLUS
Girls reading out loud disturbing their friend
Girls reading out loud disturbing their friendFREE
Set of book icons
Set of book iconsFREE
Vectors
Set of book icons
Set of book iconsFREE
Vectors
Young man with book and planets of space spinning around
Young man with book and planets of space spinning aroundPLUS
Big old opened book and miniature of businessman Stock Photo
Big old opened book and miniature of businessmanPLUS
E learning concept
E learning conceptFREE
Vectors
Back to school with school supplies on a bright blue background. Stock Photo
Back to school with school supplies on a bright blue background.FREE
Vectors
Businessman on a tower of books above clouds. Stock Photo
Businessman on a tower of books above clouds.PLUS
Steampunk girl with a book
Steampunk girl with a bookPLUS
Two girls studying together.
Two girls studying together.FREE
Big old opened book and miniature of businesswoman Stock Photo
Big old opened book and miniature of businesswomanPLUS
Male student holding anatomical model
Male student holding anatomical modelFREE
Female graduate
Female graduateFREE
Study
StudyFREE
Library school isometric Stock Photo
Library school isometricFREE
Vectors
Big old opened book and miniature of businesswoman
Big old opened book and miniature of businesswomanPLUS
Cute school boy sitting on floor and touching digital screen with finger
Cute school boy sitting on floor and touching digital screen with fingerPLUS
Funny man in red glasses and suit sitting on floating island and reading book
Funny man in red glasses and suit sitting on floating island and reading bookPLUS
Back to school with 3d colorful pencils.
Back to school with 3d colorful pencils.FREE
Vectors
A serious student with laptop tablet in elegant suit sitting on a stack of books in front of cityscape with clouds
A serious student with laptop tablet in elegant suit sitting on a stack of books in front of cityscape with cloudsPLUS
Education icons set isolated on white background
Education icons set isolated on white backgroundFREE
Vectors
The girl sits on a floor embracing the big pile of books
The girl sits on a floor embracing the big pile of booksPLUS
Young people spending time together, choosing and discussing books in public library Stock Photo
Young people spending time together, choosing and discussing books in public libraryPLUS
Book that takes you to another reality. mixed media
Book that takes you to another reality. mixed mediaPLUS
Young businessman with book and planets of space spinning around
Young businessman with book and planets of space spinning aroundPLUS
Young woman reading a book. mixed media
Young woman reading a book. mixed mediaPLUS
Funny man in red glasses and suit sitting on book and reading
Funny man in red glasses and suit sitting on book and readingPLUS
Funny man in red glasses and suit sitting on bench and reading book
Funny man in red glasses and suit sitting on bench and reading bookPLUS
Image of cute school girl standing on pile of books
Image of cute school girl standing on pile of booksPLUS
School boy and electric bulbs hanging above Stock Photo
School boy and electric bulbs hanging abovePLUS
Funny man in red glasses and suit sitting on bench and reading book Stock Photo
Funny man in red glasses and suit sitting on bench and reading bookPLUS
Book circle
Book circleFREE
Young shocked man floating in blue sky with red book in hands
Young shocked man floating in blue sky with red book in handsPLUS
3d book icon
3d book iconFREE
A book
A bookFREE
Vectors
Book that takes you to another reality. mixed media
Book that takes you to another reality. mixed mediaPLUS
Young businessman sitting on house roof with smartphone in hands
Young businessman sitting on house roof with smartphone in handsPLUS
Young smiling man sitting on house chimney with red book in hands Stock Photo
Young smiling man sitting on house chimney with red book in handsPLUS
Bookmark icon
Bookmark iconFREE
Vectors
E-learning concept Stock Photo
E-learning conceptFREE
Vectors
Book inverted Stock Photo
Book invertedFREE
Vectors
Sacred objects, bible, bread and wine. Stock Photo
Sacred objects, bible, bread and wine.PLUS
Young businessman floating in blue sky with red book in hands
Young businessman floating in blue sky with red book in handsPLUS
Funny man in red glasses and suit sitting on bench and reading book
Funny man in red glasses and suit sitting on bench and reading bookPLUS
Girl revising her school work.
Girl revising her school work.FREE
Books, library, novel, knowledge, rack, glass, reflection, school, education
Books, library, novel, knowledge, rack, glass, reflection, school, educationFREE
Funny man in red glasses and suit sitting on green moon and reading book Stock Photo
Funny man in red glasses and suit sitting on green moon and reading bookPLUS
3d books
3d booksFREE
Young man on green moon in blue sky with red book in hands Stock Photo
Young man on green moon in blue sky with red book in handsPLUS
Big old opened book and miniature of businesswoman
Big old opened book and miniature of businesswomanPLUS
Big old opened book and miniature of businesswoman
Big old opened book and miniature of businesswomanPLUS
Young businessman floating in blue sky with smartphone in hands
Young businessman floating in blue sky with smartphone in handsPLUS
Books icon Stock Photo
Books iconFREE
Vectors
Open book - side view
Open book - side viewFREE
Funny man in red glasses and suit sitting on floating island and reading book
Funny man in red glasses and suit sitting on floating island and reading bookPLUS
Young woman reading book in the library
Young woman reading book in the libraryFREE
Funny man in red glasses and suit sitting on floating island and reading book
Funny man in red glasses and suit sitting on floating island and reading bookPLUS
Young businessman floating on green moon in blue sky with red book in hands
Young businessman floating on green moon in blue sky with red book in handsPLUS
A serious student in elegant suit sitting on a pile of books looking over a brown sepia city landscape
A serious student in elegant suit sitting on a pile of books looking over a brown sepia city landscapePLUS
Young handsome businessman in pile of books with one in hand
Young handsome businessman in pile of books with one in handPLUS
Opened book on wooden background
Opened book on wooden backgroundFREE
Vectors
Textbook
TextbookFREE
Vectors
Young elegant man in glasses holding smartphone and reading book in comparison on gray background Stock Photo
Young elegant man in glasses holding smartphone and reading book in comparison on gray backgroundPLUS
Young businessman floating on green moon in blue sky with red book in hands Stock Photo
Young businessman floating on green moon in blue sky with red book in handsPLUS
Funny man in red glasses and suit sitting on bench and reading book
Funny man in red glasses and suit sitting on bench and reading bookPLUS
Close-up of an open book with a wooden star as a bookmark Stock Photo
Close-up of an open book with a wooden star as a bookmarkFREE
Open book with lightbulb and letters. concept of the importance of reading. Stock Photo
Open book with lightbulb and letters. concept of the importance of reading.PLUS
Notes
NotesFREE
Funny man in red glasses and suit sitting on book and reading
Funny man in red glasses and suit sitting on book and readingPLUS
Student graduation ceremony Stock Photo
Student graduation ceremonyFREE
Businessman looking away while sitting on pile of documents among flying books with cityscape on background. mixed media.
Businessman looking away while sitting on pile of documents among flying books with cityscape on background. mixed media.PLUS
Funny man in red glasses and suit sitting on bench and reading book
Funny man in red glasses and suit sitting on bench and reading bookPLUS
Antique leather bound book with the clock face in background. Stock Photo
Antique leather bound book with the clock face in background.PLUS
Reading icon
Reading iconFREE
Vectors
Big old opened book and miniature of businesswoman
Big old opened book and miniature of businesswomanPLUS
Hipster guy with book in hands and glass bulbs in air
Hipster guy with book in hands and glass bulbs in airPLUS
Young attractive businesswoman sitting on pile of old books reading
Young attractive businesswoman sitting on pile of old books readingPLUS
Businessman sitting in lotus pose and light bulb instead of his head
Businessman sitting in lotus pose and light bulb instead of his headPLUS
Funny man in red glasses and suit sitting on bench and reading book
Funny man in red glasses and suit sitting on bench and reading bookPLUS