Aging isn't the problem. Being discarded is. There's a phrase that dissolves any discomfort before it can turn into a real question: "That's just normal — it's your age." This book was written to refuse that sentence. What Is Ageism? takes apart, chapter by chapter, the comfortable fiction that age discrimination is simply bad manners — something a campaign of kindness could fix. It isn't. It's a mechanism: economic, institutional, cultural, and psychological. Inside, you'll find how ageism operates in the résumé rejected after 45, in the doctor's office that dismisses real symptoms as "just aging," in the way young people's voices get dismissed before they're heard, and even inside churches that traded reverence for elders for a cult of youthful dynamism. Written by a psychoanalyst and theologian, the book brings together a Freudian reading of aging as "castration in slow motion" with a radical theological rereading — one in which fragility, not vigor, is where the sacred resides. This isn't a self-help manual for "the golden years." It's an unflinching diagnosis of the mechanism that quietly decides when a life stops "being worth it" to the market — and what it means to stop accepting that as normal. Who this book is for: Anyone who has felt ageism firsthand — at work, in healthcare, within the family — and never had the vocabulary to name what was happening. HR, healthcare, and education professionals who encounter these dynamics daily without the conceptual tools to recognize them. Anyone who refuses easy comfort and wants to understand the structure behind the symptom.