The Great Wave is a deservedly famous piece of art, but if it's the only thing of Hokusai that you know, do yourself a favor and look up some of his other work.
Waterfall penance is my favorite.
https://www.tremontauctions.com/auction-lot/hokusai-katsushi...
He also made some weird art involving an octopus and a woman, which is insightful both for understanding the other side of a famous artist, and also some of the weirder things in modern Japanese manga.
Edit: after I made this comment I was reminded of a comic I saw on reddit, where the artist was bemoaning their dream of getting paid to draw beautiful art, versus the reality where the only people willing to actually pay for art all want furry porn. So maybe not much has changed really, and maybe it says less about Japanese culture, and more about the general human condition.
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