In "Tell the Machine Goodnight", I believe this book is great for science fiction lovers and a gentle read. This story mainly follows a woman named Pearl, who is a handler of machines that guides people to their happiness. As we follow Pearl and her interactions with the individuals in her life, we see where she has flaws and misconceptions in her life that cause her discomfort. While reading, Williams introduced new characters that are involved in Pearl's life, like her ex-husband and his new lover, Pearl's son, coworkers, and her clients. Each character has a new level of development and complexity centered around the machine. To create complexity, we first meet these characters as blank slates; however, as the tale progresses, we are exposed to their vulnerable spots as Williams breaks down the character's strengths to reveal their flaws and dark secrets. I enjoy this darker and more thrilling reveal of the characters as it exposes the gritty reality of the human nature is composed of while trying to achieve fabricated happiness.As I read the novel, I found many poetic themes and situations that make you question real-life scenarios relating to our involvement in technology. Although Williams published this book in 2018, she tries to add a fantasy theme to the story, but it feels more like a prediction about what life will be like soon. This theme adds an eerie and unsettling feeling about the possibility of having this type of technology potentially so close in time. In my opinion, I was very intrigued by the storyline, and Williams incorporated many complex layers and ideas about the characters. However, I felt like the story was cut short in a rushed manner, and I felt like I was left with not as much closure and felt like I was left with only partial information, or chapters were removed from the story. Although this may be the case, there are many satisfying instances where you understand the unsaid intricacy of the machine's grasp on human emotions. But I still recommend this book for an intriguing read about technology and achieving happiness.