Tintin (character) with word balloons, in which he depicted a boy and a little white dog. Abbe Wallez thought that these characters could be developed further, and asked Hergé to use characters like these for an adventure that could be serialised in . Hergé agreed, creating "The Adventures of Tintin" as a result. Images of Tintin and Snowy first appeared in the youth supplement on 4 January 1929, in an advert for the upcoming series. However, Hergé would later insist that Tintin would only be "born" on 10 January 1929, when "Tintin in the Land of the Soviets" began to be serialised
The Adventures of Tintin of heart: it is packed with close textual analysis and laden with psychological jargon." Following Apostolidès's work, French psychoanalyst Serge Tisseron examined the series in his books "Tintin et les Secrets de Famille" ("Tintin and the Family Secrets"), which was published in 1990, and "Tintin et le Secret d'Hergé" ("Tintin and Hergé's Secret"), published in 1993. The first English-language work of literary criticism devoted to the series was "Tintin and the Secret of Literature", written by the novelist Tom McCarthy and published in 2006. McCarthy compares Hergé's work with that of Aeschylus, Honoré de Balzac, Joseph Conrad, and Henry James