Enchanted, Inc. by Shanna Swendson (2005)

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Seamlessly blending fantasy and chick lit, this novel is about Texas girl who moves to NYC and gets a job with a company that creates magic spells. Endearing characters, hilarious situations, and despite the presence of magic and talking gargoyles and kissing frogs in Central Park, far more believable than most chick lit. See also the adorable sequel Once Upon a Stiletto, the third Damsel Under Stress, and the fourth and final novel, Don't Hex with Texas, which follows our heroine back to her family home, magic and all.