In the library profession, and in the world as a whole, the experiences of trans and gender diverse people often go unnoticed, hidden, and ignored. But we are here. Trans and Gender Diverse Voices in Libraries is entirely written and edited by trans and gender diverse people involved in the field: its fifty-seven authors include workers from academic and public libraries, special collections and archives, and more; LIS students; and a few people who have left the library profession completely. This book is not intended to be the definitive guide to trans and gender diverse experiences in libraries, but instead to start the conversation. It is our hope that this book will help trans and gender diverse people in libraries realize that they are not alone, and that their experiences are worth sharing. This book also demonstrates some of the reality in a field that loves to think of itself as inclusive. From physical spaces to policies to interpersonal ignorance and bigotry, the experiences recounted in this book demonstrate that the library profession continues to fail its trans and gender diverse members over and over again. You cannot read these chapters and claim that Safe Zone stickers and "libraries are for everyone" signs have done the job. You cannot assume that everything is fine in your workplace because nobody has spoken out. You can no longer pretend that we don't exist.