Complex sentence: In New York City, while working at book-packaging firm Alloy Entertainment, she became inspired to create the "Gossip Girl" series, which present a view of high-end teenage lifestyles.
Split into simpler sentences: In New York City, she found a job with book-packaging firm Alloy Entertainment, where she became inspired to create the "Gossip Girl" series. The "Gossip Girl" books present a view of high-end teenage lifestyles.