Airhead Series - Airhead and Being Nikki - Meg Cabot

The Airhead books are about a girl named Emerson Watts who reluctantly takes her sister to the opening of the new SoHo Stark Megastore. An accident occurs, and Em's body is destroyed by a falling flat-screen television at the same moment supermodel Nikki Howard has an aneurysm. With Em's parent's consent, surgeons paid by Stark Enterprises transfer Em's brain to Nikki's body in order to save her life. But when Em wakes up, she is no longer herself, and how she deals with this is the premise of the series.

In the first book, Airhead, Em Watts begins trying to figure out how to live Nikki Howard's life--a life thousands of girls would die for, but that she doesn't want. In Being Nikki, Em/Nikki begins discovering how Stark manipulated her unfortunate accident in order to cover up facts that would ruin the company, and is forced to do what the company wants. In Runaway, she decides to make a run for it in order to save her and her family.

While I haven't read Runaway yet, as it comes out on April 20, so far I like Airhead best. This is probably because I enjoyed and empathized more with Em as Em and not Nikki, and as Em spends more time in Nikki's body, she becomes more like the "real" Nikki. However, all three books were full of surprises and kept me glued to their pages through the end, and I can't wait until Runaway arrives!