"Heist Society" by Ally Carter

"When Katarina Bishop was three, her parents took her on a trip to the Louvre…to case it. For her seventh birthday, Katarina and her Uncle Eddie traveled to Austria…to steal the crown jewels. When Kat turned fifteen, she planned a con of her own—scamming her way into the best boarding school in the country, determined to leave the family business behind. Unfortunately, leaving “the life” for a normal life proves harder than she’d expected.
Soon, Kat's friend and former co-conspirator, Hale, appears out of nowhere to bring Kat back into the world she tried so hard to escape. But he has a good reason: a powerful mobster has been robbed of his priceless art collection and wants to retrieve it. Only a master thief could have pulled this job, and Kat's father isn't just on the suspect list, he is the list. Caught between Interpol and a far more deadly enemy, Kat’s dad needs her help.
For Kat, there is only one solution: track down the paintings and steal them back. So what if it's a spectacularly impossible job? She's got two weeks, a teenage crew, and hopefully just enough talent to pull off the biggest heist in her family's history--and, with any luck, steal her life back along the way." -Ally Carter's website

I loved Heist Society. I thought the Gallagher Girls books (I've admittedly only read the first two) were really cute (fluffy cute, but cute), and when I found out Ally Carter had written another book, about a family of thieves rather then a school for spies I had to read it. I'm so glad I did, it was awesome! I liked it better then the GG books, and I finished it and practically wanted to re-read it again. I liked the whole idea of the thieves and 'the family business' and everything. I liked the characters a lot, I thought Kat was a great heroine to lead the story and well, Hale was pretty awesome. Also; are we going to find out Hale's first name in "Uncommon Criminals"?? Anyway, it was a pretty adventurous and cool story. There were unexpected twists and turns and everything, and I just liked the way the whole thing unfolded. For me, there really were no slumps in the story (times where it seemed slower then others, etc..), and it was a pretty quick read. I liked how a lot of it revolved around the different paintings and everything, and that there was travel so the setting changed. It reminded me a lot of an Alex Rider book, except with a heroine and they're thieves, not spies.

Anyway. If a relatively quick read with adventure, awesomeness, good characters, by the author Gallagher Girls with an Alex Rider feel- you should really look into "Heist Society".