I just answered one question very similair to this. Here's the list I gave the last asker.
Okay, If you want...
A Laugh and an Easy Read-
The Clique Series. (Which now has seven books in the series.) It was a hilarious look at one private middle school clique and all the "drama" they go through. The whole series was hard to put down and I stayed up way to late reading each one of them.
A Cultural Experience-
Memoirs of a Geisha. It took me a while to read, and isn't exactly teen reading. But it still had a sence of romance in it. It's the story of a geisha and how her life changed because of the war.
A Ghost Story (Mixed with Love)-
A Certain Slant of Light. It may have some very "adult" scenes. But the story is very interesting and the twists and turns it take make it hard to stop reading. This book is the story of a woman ghost who can only be seen by one other person. And the mystery unfolds from there.
A Simple Love Story-
A Walk to Remember. You may have seen the movie, but the book is completely different. At the end of this story I felt uplifted and sad at the same time. It's about an unexpected love between two southern teenagers, very different from eachother.
An Inspiring Story-
The Sisterhood of the Traveling Pants. (There are now four in the series.) An amazing story of a bond between four unliekly girls. I gasped, I cried, I laughed.(Cheesy but true.)
A New Kind of Historical Book-
The Red Tent. When I chose to read this book for school over summer vacation I figured it would be another boring textbook novel. But instead this story of Dinah, a bibical character, unfolds to be a beautiful story of love, betrayal and adventure. (No need to be religious to enjoy this book either.)
A Hard-Hitting Book-
Looking for Alaska. This book was amazingly written and very witty. It had an edge of realism that so many teen books lack. There was a breathe taking twist and characters that seemed so real. I was so sad when it was over.
AN AMAZING SUMMER BOOK THAT YOU WILL NEVER FORGET!!!:
Twilight. (There is a sequal New Moon) You may have read it or not, but I can't imagine suggesting books to someone without including Twilight. It's an amazing story of love that is close to impossible to forget. I've already read it three times. It's between a Vampire and a Girl named Bella. But I strongly suggest that you figure out the rest on your own. One of my favorites or maybe even my favorite book I've ever read.
I hope you enjoy them! Good Luck.