Nice little game, simple but works. Visuals are simple, as well, but good and nicely compliment the simple gameplay. The music was cool, fits perfectly.
What bothered me though was blurring of the text around edges, actually it was not bad at all during game, or main menu, however when I opened the About section in menu, it really was just too much and my eyes felt uneasy from that.
Also for the gameplay it quickly stalls and feels very monotone, I understand that with the limited amount of time you had for development it was good, however if you want to continue developing the game, thats what I would focus on. It could be enough just to keep sending more and more bad books and fewer good books, or you could gradually increase the speed of the game, or some combination of both, so the game's difficulty increases over time. Currently it felt that I could play for hours without dying, since the game's difficulty didn't progress at all and avoiding bad books was very easy.
You mentioned you want to release the game for Android, and I think that's great idea, the game has very simple controls that would be easy to implement to phone devices.