This is actually a big question which book to read so here I come with the answer read books which suits your personality. There are many people who like romance then they can go for The Notebook. Some like to read humor then they can read Shopaholic, some likes to read motivational books then they can go for Lilly Singh’s How to be a bawse.
You must know which kind of books suits you or you like. I personally like Romance and Motivation . so you must first know what exactly is your taste. What actually suits your personality and you will soon get to know about which book you should read.