富嶽三十六景
His "Thirty-six Views of Mount Fuji", from which "The Great Wave" comes, was produced from when Hokusai was around seventy years old. The series is considered his masterpiece. It made use of the recently introduced Prussian blue pigment; at first, the images were largely printed in blue tones ("aizuri-e"), including the key-blocks for the outlines. After its success was assured, multicolored versions of the prints released.