At Wit’s End: Plain Talk on Alzheimer’s for Families and Clinicians, now in its Second Edition, is a straightforward summary of leading advice for understanding and caring for someone with Alzheimer’s disease, written without technical jargon and impractical nuance. About one-third of our population will eventually provide care for someone with Alzheimer’s. The strain of caring for a loved one with this disease can be enormous, yet the reward of enhancing a loved one’s quality of life is beyond...