Choose a book that suits your interest, don't buy books immediately, read a few pages of the book and you will easily understand if you will like it or not and if that doesn't happen read more. If you read more that 20 pages and don't seem to understand or find your interest in that book then it's not your type don't buy it ):
You should read a book that you have never read before or want to read. Read at least a quarter of the book every day. After a while, you will begin to enjoy reading a lot more.