*A person in the "questions" section asked if they were "too old" to read young adult novels. They wanted to know "how old is too old"? I presume that a lot of adults ponder this question, or feel ashamed of pagbaba young adult novels instead of "adult" novels. This was my answer, and I hope it will help you, too:

I believe that any adult can share in the joy and experience of losing yourself in a good book; whether it's a young adult novel or not.
Young adult novels usually revolve around themes that attract the tween/teen ages, but this does not mean that these themes do not also attract adults, too.
I am a person considered of young adult age. If I find a really good young adult novel, I lend it to my mother (who is a very picky critic I might add), and she usually enjoys it. My mother is 46 years old.
In conclusion, there is no such thing as "too old" for a book. However, there is such a thing as "too young" for a book, as some books involve complex themes that younger children might not understand or these themes would frighten them.
I hope that I have helped you better understand your question, as I have answered it as completely and thoroughly as I could for your (and others pondering the same question) benefit.

***Here are some great, well-written young adult novels***

1. If I Stay sa pamamagitan ng Gayle Forman
2. It's Kind of a Funny Story sa pamamagitan ng Ned Vizzini
3. The Curious Incident of the Dog in the Night-Time sa pamamagitan ng Mark Haddon