Concentrating posters & prints

Oxford Student Cramming for Exams Anonymous

Children and a Broken Egg-Shell 1874 Anonymous

Boy crouching shooting marbles concentration Anonymous

The Volunteer Review at Portsmouth: The Defending Force Concentrating at King William's Gate UK 1869 Anonymous

The Game of Backgammon Cornelis de Vos

Hooke's microscope with condenser for concentrating light, 1665 Unknown

An Evening in the Library Anonymous

Robert Fulton Thinking at Desk Anonymous

Food Supply Anonymous

Scribe Working at His Desk Anonymous

Girls Reading Eugene Carriere

Focus on soccer Anonymous

Contemplating soccer Anonymous

Leontine Reading Pierre-Auguste Renoir

Concentric Circles in Color Field Anonymous

The Listening Girl Jean-Baptiste Greuze

Boy Working on His Schoolwork Anonymous

Woman Doing Yoga Anonymous

The Lacemakers Anders Leonard Zorn

Girl Reading in an Interior Carl Holsoe

Man hitting volleyball, side view Anonymous

Boy Working on Subtraction Problem Anonymous

At a Book Maria Konstantinova Bashkirtseva

Reading, 1863 Ivan Nikolaevich Kramskoy

First Grade Pam Ingalls

People Reading Together at Table Anonymous

Well Caught, Woman Stretching Up Andrew Pitcairn-Knowles

Women Communards in Concentration Camp at Versailles, 1871 Anonymous

Concentration, 2018 Mark Adlington

Fotogramm of segments and concentric circles of a sphere László Moholy-Nagy

Summer Reading Frederick Carl Frieseke

1930s 1940s Busy Man In Shirt Sleeves Behind Office Desk Working At Typewriter Smoking Cigarette Anonymous

James Peale, 1822 Charles Willson Peale

Technical instruction, Haselrigge Road School, Clapham, London, 1914 Unknown

Pensive Pirate on Chest Anonymous

Detail of Louis Pasteur in His Laboratory Albert Edelfelt