From a graphical point of view this game is a gem! This menu animation is gold. I also like this "Overcooked" vibe that game generates. :)
One question that puzzles me, why is there a monster? I never felt the need to lay down a book. Maybe it would be a little bit harder if the ladder is only movable without any book in hand? Just an idea.
But nevertheless I had fun playing the game. Great entry!