This game is Hanon Ondricek at his best. There's a million moving pieces: a book-selling minigame, events on a timer, mobile NPCs, in-depth conversational trees, easter eggs, crowds, a million little easter eggs, non-standard parser responses. It's a great game.
It's fairly short, but I think it was designed that way intentionally to allow all players to reach an ending. You just wander around, looking at everything, talking to the kids and parents, selling books, and then you pick a winner.
Highly recommended.