current reads for older teens

I work at a college library. We are trying to develop our collection of recently published leisure reading that targets the 17-22 age range. Our current collection is aimed more at the staff/faculty. An example of the type of book we are looking for is "The fault in our stars." Any suggestions?

The Age of Miracles by Karen Thompson Walker. Kind-of-not-quite post-apoc (much subtler than that), written about a teen/tween but from the perspective of later years, so you kind of get the best of both worlds.

Melina Marchetta's The Piper's Son. The main characters are in their early twenties. Her Lumatere Chronicles would also work if you are interested in fantasy (Finnikin of the Rock, Froi of the Exiles, and Quintana of Charyn). Trish Doller's Something Like Normal would also be a good one.

ETA: Megan Whalen Turner's Queen's Thief series is another option for readers of fantasy. The first book, The Thief, skews toward the younger end of the YA spectrum, but each addition to the series has become more sophisticated. The characters are fantastic, there's action, adventure, political intrigue and a ton of humor. I love rereading these books, because you discover something new each time.

For non-fantasy YA, Huntley Fitzpatrick's My Life Next Door is a romance featuring older teens. Sophie Flack's Bunheads has a late teen heroine, too, who actually works full time at the NYC Ballet (no relation between the book and the TV show, other than they're both about ballet).

There are also many great adult novels featuring late teen/early twenties characters, like Prep, I Love You Beth Cooper, Dare Me by Megan Abbott, The Language of Flowers, The Yonahlossee Riding Camp for Girls, and many more.

What kinds of books are you looking for? Fiction only? Any genre? Books specifically targeted at upper-level YA, or anything a reader of that age might enjoy? The Fault in Our Stars is a great book, but it's not enough information to build a whole library out of.

Thanks for the suggestions. They added some titles which we had missed.

Code name Verity was, with TFIOS, the most highly rated YA read of 2012. It seems to be as popular with adults too.

How about The book thief, another nominally YA title that seems to have escaped that boundary?

In LibraryLand, Young Adult literature is generally considered for ages 12-18. What you probably want is "New Adult" fiction.
http://www.yalsa.ala.org/thehub/2013/07/09/ala-2013-new-adult-fiction-what-is-it...

The Alex Awards are for adult books with teen appeal:
http://www.ala.org/yalsa/booklists/alex

Lish McBride has a couple of funny books - Hold Me Closer, Necromancer & Necromancing the Stone.

Ready Player One is great.

For nonfiction, A History of Weapons is supposed to be funny and informative.

Gayle Forman is one of my favorite YA authors and she writes more to the post-YA/college-age audience, as you described. If I Stay and Where She Went are a must-have pair of books, and Sisters in Sanity was excellent as well. Her latest book, Just One Day, I thought was just so-so, but a lot of people liked it.

More books that seemed more adult than YA:

Tender Morsels
The Chosen One
Please Ignore Vera Dietz
A Certain Slant of Light

You hit the nail on the head with "New Adult". Thanks for the links.

Oh geez. One I forgot: For The Win by Cory Doctorow. It's an intense thriller about online gaming and communities, and it's basically too long for me to recommend to people under 18 or so. But it's extremely interesting and well-written.

If I Stay and Where She Went are very popular right now, as are John Green's books, especially The Fault in Our Stars.

IMO, Gracefully Grayson is terrific. A girl in a boy's body deals with coming out of hiding in her middle school. Beautifully done. Teens and adults would appreciate it, too, like Wonder.

Fangirl by Rainbow Rowell takes place during the protagonist's first year at college.
Conversion by Katherine Howe is a YA book but would be better appreciated by adults (IMHO). Pair it with The Crucible.
I'll second the recommendation of the Elizabeth Wein books, Code Name Verity and Rose Under Fire. She has a third book coming next year.
Naomi Novik's Temeraire series would be an enjoyable addition of historical fantasy (dragons during the Napoleonic Wars).