I read one of them in my English class (second language) during high school. I remember liking most of them: short stories about teenage years and life in general. I thought most of them were cute and inspiring.
I had almost forgot about this book. Table of content has the following topics: relationship, friendship, family, love/kindness, learning, tough stuff and making a difference and going for it. So yea I think you're right talking about NF read.