Here are some of my favorites:
Any books by Amelia Atwater-Rhodes are amazing! There is In The Forest of The Night, Demon In My View, Shattered Mirror, Midnight Predator. And then there is the The Kiesha'ra series: Hawksong (the best in the series!), Snakecharm, Falcondance, Wolfcry and Wyverhail.
A Northern Light by Jennifer Donnelly
Blood and Chocolate by Annette Curtis Klause
The Princess Bride by William Goldman
13 Little Blue Envelopes by Maureen Johnson
Girl At Sea by Maureen Johnson
Abarat by Clive Barker, Make sue you get the hardcover version though!!! If you liked the first one be sure to check out the next book in the series Abarat: Days of Magic, Nights of War.
Daughters of Destiny series: Keeper of the Winds by Jenna Solitaire, If you enjoyed the first one check out the next three books in the series. Keeper of the Waters, Keeper of the Flames and Keeper of the Earth.
The Maximum Ride series (The Angel Experiment, Schools Out Forever, Saving the World and Other Extreme Sports, The Final Warning) by James Patterson
The Cry of the Icemark by Stuart Hill, If you liked this one, check out the next two Blade of Fire and The Last Battle of the Icemark.
The Haunting of Alaizabel Cray by Chris Wooding
Inkheart and Inkspell by Cornelia Funke
The Sisterhood of the Traveling Pants series by Ann Brashares
Nick and Norah’s Infinite Playlist by Rachel Cohn and David Levithan
All-American Girl by Meg Cabot
Uglies series by Scott Westernfeld
The Wind Singer, Slaves of the Mastery and Firesong by William Nicholson
Tuck Everlasting by Natalie Babbitt