Wikipedia: "The Yellow Book, published in London from 1894 to 1897 by Elkin Mathews and John Lane, later by John Lane alone, and edited by the American Henry Harland, was a quarterly literary periodical (priced at 5s.) that lent its name to the "Yellow" 1890s.

It was a leading journal of the British 1890s; to some degree associated with Aestheticism and Decadence, the magazine contained a wide range of literary and artistic genres, poetry, short stories, essays, book illustrations, portraits, and reproductions of paintings. Aubrey Beardsley was its first art editor, and he has been credited with the idea of the yellow cover, with its association with French fiction of the period. He obtained works by such artists as Charles Conder, William Rothenstein, John Singer Sargent, Walter Sickert, and Philip Wilson Steer. "

All 13 volumes are available to download from www.archive.org in either djvu or pdf formats. Wikipedia has direct links.

Also on archive.org: The later work of Aubrey Beardsley