Tintin in the New World : A Romance (1993) by Frederic Tuten. A novel that transplants Tintin from his comic book confines into a fleshed out, realistic world with all its wicked, grave and abstruse trappings. The cover of the novel features a specially-commissioned painting by Roy Lichtenstein who used his hallmark Benday-dot technique to depict Tintin and Snowy in a near-miss with a would-be assassin's knife.
The Pocket Essential Tintin by Jean-Marc Lofficier and Randy Lofficier (2002)
The Adventures of Tintin at Sea by Yves Horeau; edited and translated by Michael Farr (2004). Issued in conjunction with an exhibition focusing on Tintin's exploits at sea at the National Maritime Museum in London, which was organized in partnership with the Hergé Foundation. The exhibition commemorated the 75th anniversary of the publication of Tintin's first adventure.
Tintin and the Secret of Literature by Tom McCarthy (2006). A rather obscurely-written work which attempts through literary analysis to identify themes in "great literature" by such authors as Aeschylus, Balzac, Conrad and Henry James in the Tintin comic series. Reviewed in News: Clements. Toby. Tintin and the Enigma of Academic Obsession. https://web.archive.org/web/20080527214512/http://www.telegraph.co.uk/arts/main.jhtml?xml=/arts/2006/07/09/bomcc202.xml. dead. 2008-05-27. The Daily Telegraph (Review). 6. 2006-07-09.