Fun fact during the couple of albums prior to Tintin in Tibet Herge was suffering from horrible depression and anxiety caused by Tintin deadlines weren’t making it easier for him. He would often draw these little editorial cartoons of him being whipped or chained to his desk by Tintin to express his frustration with the series. In desperation and loneliness Herge tried to contact real-life Tchang Tchongren with whom he had lost contact for decades (he was often alluded to as Herge’s repressed love interest but he was still a very dear and intimate friend to him regardless). This served as inspiration for Tintin in Tibet in which Tintin tries to reconnect with the fictional Tchang. That album is one of the more successful and critically acclaimed of the series because of the degree of emotion normally absent in Tintin comics!
Here’s another thing about Tintin in Tibet: Hergé at the time of writing this album, was having a lot of dreams about snow. He had many dreams in white and kind of blank. This was another inspiration for the setting of this album.