Reading a Ted Chiang anthology is an experience that slowly claims little corners of your brain until eventually your whole head is devoted to it. You read and digest one story, but each tale is so compelling and complex that no matter how long you wait, that first story will continue to beg questions even as you try to digest a second. One after another, Chiang's stories claim their place in your mind until you're completely swept up in his provocative and at times even charming world. 

Exhalation, Chiang's latest collection of stories covering almost 20 years of his work, gathers nine tales that ponder questions of the nature of consciousness, the rigidity of history, our relationship with the machines that increasingly take control of our lives and more. In the title story, the narrator uses their own artificial lungs as the basis for a study on the nature of reality. In "The Merchant and the Alchemist's Gate," Chiang explores time travel as it might have existed in a time before science fiction pushed it into the public consciousness. "The Great Silence," one of the book's shortest tales, explores the intellect and mortality of a parrot. Then there's the collection's centerpiece, the novella-length "The Lifecycle of Software Objects," which explores the growth and developing lives of a group of digital organisms and the humans who care for them. 

Each story is a carefully considered, finely honed machine designed to entertain, but this collection also forces you to look at things like your smartphone or your pet with new eyes. What makes Exhalation particularly brilliant is that not one of the stories feels like it's designed to be thought-provoking in a stilted, academic way. Chiang is an entertaining, empathetic writer first, before being one of contemporary sci-fi's intellectual powerhouses, and each story reads that way. 

Exhalation is a must-read for any fan of exquisitely crafted sci-fi. Chiang has reminded us once again that he's one of the most exciting voices in his field, and that we shouldn't expect him to wane any time soon.

Chiang (Stories of Your Life and Others) is always thought provoking, and his latest collection is no exception. "The Lifecycle of Software Objects" considers artificial intelligence, with one woman wondering if they should be treated as living beings. "The Merchant and the Alchemist's Gate" asks, if the past cannot change, is life driven by fate? "The Truth of Fact, the Truth of Feeling" posits a future in which we record every moment of our lives and how that affects us, with a second narrative featuring a man who learns to read and write and its impact on his oral storytelling culture. Two of the nine pieces are new: "Omphalos" deals with creationism as science, and "Anxiety Is the Dizziness of Freedom" centers on talking to our other selves in alternate worlds. VERDICT Any sf reader can dive into these stories and find something exciting. Especially recommended for fans of Greg Egan, Ken Liu, and Netflix's Black Mirror. [See Prepub Alert, 11/19/18]—Lucy Roehrig, Ann Arbor Dist. Lib., MI

Hugo- and Nebula-winner Chiang's standout second collection (after 2002's Stories of Your Life and Others) explores the effects that technology and knowledge have on consciousness, free will, and the human desire for meaning. These nine stories introduce life-changing inventions and new worlds with radically different physical laws. In each, Chiang produces deeply moving drama from fascinating first premises. The title story follows a scientist whose self-experimentation reveals both the origin and eventual fate of consciousness. In "What's Expected of Us," a small device horrifically alters human behavior. Chiang's rigorous worldbuilding makes hard science fiction out of stories that would otherwise be fable, as in the Hugo and Nebula-winning novelette "The Merchant and the Alchemist's Gate," a time travel story that employs both relativistic physics and an Arabian Nights–style structure. Others grapple with robots parenting humans, humans parenting AIs, the Fermi paradox, quantum mechanics, and what it means to be a sentient creature facing a potentially deterministic universe. As Chiang's endnotes attest, these stories are brilliant experiments, and his commitment to exploring deep human questions elevates them to among the very best science fiction. Agent: Kirby Kim, Janklow & Nesbit. (May)