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A man, a puppeteer, manipulates the planet. The concept of world conspiracy, world government, manipulation, world control
Hand drawing Theory and Practice balance scale concept with marker isolated on white background.
Color theory. Colour tones wheel complementary and secondary combinations. Color tones combinations scheme vector illustration set
Abstract background. The camera flies past a large number of mathematical formulas on a dark background. Business concept. 3d render. School education presentation or graduation project.
Set vector line icons, sign and symbols in flat design science with elements for mobile concepts and web apps. Collection modern infographic logo and pictogram.
wise man writing mathematical problem solution

Free stock photostheory (115)

Knowledge grunge stamp
Knowledge rosette
Businessman holding book with doodle drawings and signs.
Businessman holding book with bulb.
Businessman holding a book with question mark symbol.
Businessman holding book with letter concept.
Think Tank chalkboard emblem written on a blackboard
Knowledge vintage wood emblem
Think Tank on blackboard
Knowledge rubber stamp with grunge texture
Think Tank with pencil strokes
Knowledge banner
Businessman holding book with letter concept.
Man holding a book with document symbols around.
Businessman holding book with bulb.
Young pretty lady with hand drawn white calculations and icons
Businessman holding a book in his hand.
Opinion penciled
Opinion chalk emblem, retro style, chalk or chalkboard texture
Knowledge grunge style stamp
Think Tank draw with pencil effect
Knowledge chalkboard emblem
Knowledge grunge stamp
Knowledge rubber seal with grunge texture
Young pretty lady with hand drawn white calculations and icons
Knowledge rubber grunge stamp
Young pretty lady with hand drawn white calculations and icons
Young pretty lady with hand drawn white calculations and icons
Think Tank chalk emblem
Young pretty lady with hand drawn white calculations and icons
Think Tank on blackboard
Think Tank wood signboards
Knowledge gold badge
Think Tank golden emblem or badge
Knowledge chalkboard emblem on black board
Opinion on chalkboard
Think Tank abstract rosette
Knowledge emblem with jean background
Businessman holding book with bulb.
Think Tank with chalkboard texture
Knowledge chalkboard emblem
Knowledge golden badge
Knowledge grunge seal
Knowledge rubber texture
Think Tank grunge stamp
Think Tank gold shiny emblem
Think Tank golden emblem or badge
Think Tank retro style card, banner or poster
Young pretty lady with hand drawn white calculations and icons
Think Tank gold shiny badge

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