Many nonverbal behaviors—smiling, blushing, shrugging—reveal our emotions. One nonverbal behavior, gesturing, exposes our thoughts. This book explores how we move our hands when we talk, and what it means when we do so.

Susan Goldin-Meadow begins with an intriguing discovery: when explaining their answer to a task, children sometimes communicate different ideas with their hand gestures than with their spoken words. Moreover, children whose gestures do not match their speech are particularly likely to benefit from instruction in that task. Not only do gestures provide insight into the unspoken thoughts of children (one of Goldin-Meadow’s central claims), but gestures reveal a child’s readiness to learn, and even suggest which teaching strategies might be most beneficial.

In addition, Goldin-Meadow characterizes gesture when it fulfills the entire function of language (as in the case of Sign Languages of the Deaf), when it is reshaped to suit different cultures (American and Chinese), and even when it occurs in children who are blind from birth.

Focusing on what we can discover about speakers—adults and children alike—by watching their hands, this book discloses the active role that gesture plays in conversation and, more fundamentally, in thinking. In general, we are unaware of gesture, which occurs as an undercurrent alongside an acknowledged verbal exchange. In this book, Susan Goldin-Meadow makes clear why we must not ignore the background conversation.

An intimate account of an anthropologist’s relationship with his non-verbal son and how it has shaped and transformed his understanding of closeness and communication.

Home Signs grew out of the anthropologist Joshua Reno’s experience of caring for and trying to communicate with his teenage son, Charlie, who cannot speak. To manage interactions with others, Charlie uses what are known as “home signs,” gestures developed to meet his need for expression, ranging from the wiggle of a finger to a subtle sideways glance. Though he is nonverbal, he is far from silent: in fact, he is in constant communication with others.
 
In this intimate reflection on language, disability, and togetherness, the author invites us into his and Charlie’s shared world. Combining portraits of family life and interviews with other caregivers, Reno upends several assumptions, especially the idea that people who seem not to be able to speak for themselves need others to speak on their behalf. With its broad exploration of nonverbal communication in both human and nonhuman contexts, Home Signs challenges us to think harder about what it means to lead a “normal” life and to connect with another person.

In How Machines Came to Speak Jennifer Petersen constructs a genealogy of how legal conceptions of “speech” have transformed over the last century in response to new media technologies. Drawing on media and legal history, Petersen shows that the legal category of speech has varied considerably, evolving from a narrow category of oratory and print publication to a broad, abstract conception encompassing expressive nonverbal actions, algorithms, and data. She examines a series of pivotal US court cases in which new media technologies—such as phonographs, radio, film, and computer code—were integral to this shift. In judicial decisions ranging from the determination that silent films were not a form of speech to the expansion of speech rights to include algorithmic outputs, courts understood speech as mediated through technology. Speech thus became disarticulated from individual speakers. By outlining how legal definitions of speech are indelibly dependent on technology, Petersen demonstrates that future innovations such as artificial intelligence will continue to restructure speech law in ways that threaten to protect corporate and institutional forms of speech over the rights and interests of citizens.