When Katsushika Hokusai assembled his Album of Sketches by Katsushika Hokusai and His Disciples in 1834, he was already a living legend in Edo Japan, yet this collection stands out for its collaborative spirit—gathering not only his own drawings but also those of his students. The album offers a rare window into the bustling workshop of Hokusai, whose influence had by then shaped an entire generation of artists. Unlike his famous Thirty-Six Views of Mount Fuji, this album was never intended for mass publication, making surviving copies especially precious.

Scholars still debate the precise number of hands involved, as some sketches blur the line between master and pupil. Leafing through the album, one encounters a lively parade of subjects: mythic warriors, serene landscapes, birds in flight, and everyday scenes from Edo life. At one moment, a fisherman strains against the pull of a river, rendered with a few quick, sure lines; at another, a dragon coils through clouds, its energy barely contained by the page. The variety and spontaneity recall the sketchbooks of Rembrandt, yet Hokusai’s brushwork is unmistakably his own—bold, fluid, and playful.

Each drawing is both practice and performance, a glimpse into the creative process where teaching and learning become inseparable. The physical album itself has a mysterious history. Its original medium is uncertain, though paper and ink were most likely, given the period and the artist’s known materials. Some albums were passed down through Hokusai’s students, while others surfaced in collections only in the twentieth century, often lacking clear provenance.

Today, examples of these sketch albums are held in major museums and private collections worldwide, cherished as intimate records of Hokusai’s workshop at its height. For Hokusai, who called himself "the old man mad about drawing," these pages are the living proof of a restless, communal creativity that shaped the course of Japanese art.