Gill Partington recounts the story of Thomas James Wise in the London Review of Books and the LRB Podcast. Wise was the doyen of Victorian bibliophiles, and might the most prolific literary forger in history. Thomas J. Gearty jr. wrote a brief survey of his forgeries in 1973. You can see images from Wise's work, with explanations by librarian Alexander Johnston, on the University of Delaware Library website.