Knowledge
Full length of woman using mobile phone in city
Serious students studying at desk in classroom
Empty chairs and tables arranged in classroom
Optical illusion of silhouette person holding sun over mountains during sunset
Father supporting daughter crawling up on slide at playground
Midsection of girl on scooter
Concentrated young woman reading book at desk
Young woman standing on street in city
Young man looking away in city
Portrait of a young woman by the sea in a hat at sunset
Businessman communicating with female coworker in meeting at office
Woman painting on canvas at home
Young woman using laptop
Woman wearing sunglasses while standing against blackboard
Portrait of girl standing against bus
Portrait of boy looking at camera
Side view of woman standing against trees
Cropped of hand of child writing on book on desk
Boy looking at camera
Boy drawing on table at home
Portrait of young woman lying on bed at home
Woman standing by tree against plants
Young woman looking at camera while standing against white wall
Front view of person holding red book in hand
Full length of woman sitting outdoors
Mature businesswoman discussing with female colleague at corporate office
Woman standing amid bookshelf in library
Girl writing at table in home
Smiling siting on chair in yard
Rear view of a young man playing piano
Midsection of lawyer standing against black background
Portrait of young woman
Happy friends running with backpacks against plants
Woman reading book on bed at home
Boys e-learning through laptop while sitting in living room
High angle view of teachers and students sitting in child care classroom
Father assisting son with e-learning on tablet at home
Incense stick smoke against black background
Young woman reading book at library
Scenic view of mountains against sky
View of young woman cycling
Woman wearing mask using digital tablet outdoors
University students wearing protective face mask while moving down on staircase against education building
Group of people learning to play guitar
Side view of shirtless man standing against colored background
Young hands drawing with pencil on paper
Young woman using laptop by plants
Cropped hand holding flower against books on shelf
Portrait of girl looking at camera
Portrait of cute baby
Midsection of woman reading book
Young student with umbrella standing in park
Man standing by sea against sky
Girl studying in darkroom at home
Friends reading book while sitting against trees
Female student making notes at home
Friends sitting on palm tree against sky
Optical illusion woman holding sun at sunset
Cropped hand of kid playing piano
Mother sitting by teenage son studying at home
Boy sitting by table at home
Businesswoman discussing with colleagues in board room at office
Hand of person amidst white smoke
Portrait of man holding smart phone standing on footbridge
Portrait of cute girl standing against wall
Hands of a child playing
Teenage girl playing piano while sitting at home
Full frame shot of books in shelf
Midsection of child playing guitar at home
Close-up of wrinkled human hand at home
Midsection of man holding camera
Girl using tablet in city
Business people discussing in office
Midsection of woman holding lizard while boy touching it
Cute boy looking away while relaxing on bed
Low section of people standing outdoors
Close-up of hand against sea
Entrepreneurs attending training class in conference centre at office
Concentrated man reading book at table
Blurred motion of person reaching sky
Close-up of human hand praying against black background
Young woman posing
Midsection of woman holding book in library
Friends talking to female students standing in university
Midsection of woman reading book at home
Woman sitting on sofa at home
Bright dawn in early morning on countryside. perfect nature at dawn. sunlight in soft mist
Midsection of person holding book on field
Full frame shot of wooden floor
Full length of boy sitting on floor
Multi-ethnic friends studying together while using laptop at home
Schoolgirls walk along the park alley to school, talk and laugh. the concept of training
Woman with long hair standing on ladder while searching book in library
Distracted teenage boy with laptop texting on mobile phone while sitting at home
Close-up of man holding hands
Directly above shot of woman writing on book in bedroom
Hand and leg with bottle and wineglass
Woman with dog standing against sky during sunset
Woman holding umbrella standing against building in city
Close-up of hand touching fern leaves