My favorite book of all time would have to be "Smile" by Raina Telgemeier.  I first read it in fifth grade because my friend had it and her book were popular at the time.  I liked it because it was about a middle schooler going struggles and how she overcomes them, one of the problems being that she lost her two front teeth.  I think I liked the book for that reason because as a fifth grader, in about a year I would be going into middle school.  I also know that it's my favorite book because I read it on my own, I didn't have to read it for school or nothing.  So even though it is a kids book, my favorite will always be "Smile."