Thanks for playing and for the feedback! This is a short-term student project we made for a class. We really appreciate your comment, and we hear you regarding the confusion. We will absolutely take this into account to improve our future work!
P.S. Hint: There are hidden letters on the books that form a sentence. Also, the lines on the middle of the spines will connect if they are in the correct order. (It might be a bit hard to see right now, but we will definitely improve this detail in the future!)