Why is Lucian in a library in Pokemon platinum?

In Pokémon Platinum, Lucian is found in the library of the Pokémon League headquarters in the Sinnoh region. He is one of the Elite Four members and is known for his expertise in Psychic-type Pokémon. The library serves as a setting for him to discuss the importance of knowledge and strategy in battles, reflecting his intellectual approach to training and battle tactics. Additionally, the library is a place where trainers can learn more about Pokémon lore and the history of the Sinnoh region.