Jennifer is a senior research scientist at Adobe. She is most passionate about finding ways to apply technology to solve real-world problems. Her current research focus is around understanding people's emotions in real-world situations by using machine learning algorithms to infer emotional states from sensed data. For more information on Jennifer's research, please see: https: //www.linkedin.com/in/healeyjennifer. Jennifer is the lead author of Chapters 6 and 9 of this book.