What this is
The first Japanese book found crediting The Pokémon Company by name with its own role: supervision (監修) of the PokéPark Wii official guide, Shogakukan, December 2009.
How it’s built
- Read from the National Diet Library’s catalogue, Japan’s national book register.
What we assumed
Nothing. The figure is used as published.
Sanity check
Earlier books may credit the company in shared lists or not at all, so this is the earliest found, not proven first.
The values
- Issued: December 2009
- Record id: R100000002-I000010663710
- Title: ポケパークWii～ピカチュウの大冒険～公式完全ガイド
- Publisher: 小学館
- Game art: game guide (Wii)
Where it comes from
The line in the source
ポケモン 監修