In this eight-print series published around 1833–34, Hokusai skillfully depicts characteristics of famous (and one or two not-so-famous) waterfalls of Japan. All of the prints in the ukiyo-e series, which is said to be the first produced on the theme of falling water, are in a vertical format and feature at least one human figure, giving the approximate scale of each waterfall. Hokusai also shows how the waterfalls and surrounding areas were used in different ways by people. Striking Prussian blue pigment, new to Japan when Hokusai was designing these prints, was used in each illustration, drawing viewers' attention straight to the thundering falls.