"St. Elmo's Fire" by Tamar Hodel is a popular 1980s teen romance novel that explores the lives of recent college graduates navigating friendships, love, and adult responsibilities.
As I know, only Starfire and Robin were a couple in the original series.
CHERUB by Robert Muchamore
There are a lot of good teen books out there, but some really good ones are Alyzon Whitestarr, The Hermit Thrush Sings, and The Clique.
I'm not sure about teen catalogs but there's always borders online. I'm sure they might have some kind of recommended reading list. also, you could get a list of good books for your teen's reading levels from his or her teacher. those are good routes to go. some nice books are Tale of Two Cities by Charles Dickens, Moby Dick by Herman Melville, Gone With the Wind, Great Expectations by Dickens, there are some great classics. but are books i have read. I'm fifteen and I've read those books this year and in years past, but I'm not sure about your teen's reading levels.
Richard Paul has some good teen books. He has books like Michael Vey. This book is good to be read by teenagers. Not only are these books available, it's an ongoing series and some books are soon to be released.
maximum ride the twilight series and jams patterson books
Popular fashions books are "Lauren Conrade Style" by Lauren Conrad, "The Lucky Shopping Manual" by Andrea Linett, "100 Unforgettable Dresses" by Hal Rubenstein, "The Little Black Book of Style" by Nina Garcia, "The Teen Vogue Handbook" by Teen Vogue, "Parisian Chic: A Style Guide" by Ines de La Fressange.
Twilight Saga is one of the most popular right now. There is also the House of Night series and the Sisterhood of the Traveling Pants has some romance.
Lurlene McDaniel
The most recent romance books to stay on the New York Times best seller's list are the books in the series Fifty Shades of Grey. In the teen paranormal romance category, the Twilight saga has also been extremely popular.
There are many places that have information about Teen Nick. For example the library would have some books to supplement the curiosity about Teen Nick.