What are some really good YA books you couldn't put down? I am looking for something for my neice that loves to read. Thanks

In no particular order:  "Summers at Castle Auburn" by Sharon Shinn, "The Graveyard Book" by Neil Gaiman, "The Hunger Games" by Suzanne Collins,  "Uglies" (series) by Scott Westerfeld, "It's Kind of a Funny Story" by Ned Vizzini, " "The Wee Free Men" by Terry Pratchett, the "Tithe" series by Holly Black, "Summer of My German Soldier" by Bette Greene, "Beauty" by Robin McKinley.  

All of these except for the Ned Vizzini and Bette Greene books are fantasy.  I's what seems to be written the most often, these days, although "Beauty" is a very old book.  Read it and you'll see where Disney got their ideas for the movie.

I second the Hunger Games Trilogy, I loved them.  A Northern Light by J. Donnelly was really good.  I liked The Book Theif and Cleopatra's Daughter.

My daughter loved the House of Night books, and Shiver/Linger and Beautiful Creatures.  She also enjoys the classis, To A Kill Mocking Bird, Anne Frank, Catcher in the Rye, Night.

The Demon Trappers Daughter" was fantastic and someone posted that it was available for 2.99 in ebook from Amazon. It was one of the best books this year so far. Another one is

A Match Made In High School" This was the funniest book I have ever read.  It was seriously laugh out loud funny. 

Beth

What kind of books/authors has she read and enjoyed in the past?  What genres does she like?

Hunger Games (and sequels) are a good bet, but if she likes to read chances are she's already read/heard of them.