I’m not an essay reviewer, but I doubt that an essay that offers your thoughts on a series of books is the best use of the very limited space to make your pitch as to why your app should go in the ‘yes’ pile instead of joining the 96% that have to go into the ‘no’ pile. If it is to work at all the comments would have to link together into a clear narrative arc that together shows something important about who you are- and that thing can.not.be that you are a super-intellectual or impressively well-read or full of keen insights.