A lost sketchbook belonging to Vincent van Gogh includes 65 never-before-seen sketches.
The sketchbook - which is set to be published yesterday - contains drawings from his most significant period while he was living in France.
During this time, he was suffering from mental health problems which famously led to the artist cutting off his ear.
However, he also produced some of his most famous paintings in this period.
The discovery was made by retired University of Toronto professor Bogomila Welsh-Ovcharov.
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