When Face Recognition Goes Wrong explores the myriad ways that humans and machines make mistakes in facial recognition. Adopting a critical stance throughout, the book explores why and how humans and machines make mistakes, covering topics including racial and gender biases, neuropsychological disorders, and widespread algorithm problems. The book features personal anecdotes alongside real-world examples to showcase the often life-changing consequences of facial recognition going wrong. These range from problems with everyday social interactions through to eyewitness identification leading to miscarriages of justice and border control passport verification. Concluding with a look to the future of facial recognition, the author asks the world's leading experts what are the big questions that still need to be answered, and can we train humans and machines to be super recognisers? This book is a must-read for anyone interested in facial recognition, or in psychology, criminal justice and law.