In the introduction of this article: "PEN America defines a school book ban as any action taken against a book based on its content and as a result of parent o

In the introduction of this article: "PEN America defines a school book ban as any action taken against a book based on its content and as a result of parent or community challenges, administrative decisions, or in response to direct or threatened action by lawmakers or other governmental officials, that leads to a previously accessible book being either completely removed from availability to students, or where access to a book is restricted or diminished." It sounds like PEN would not consider just a complaint they heard a parent make about a book as a ban on a book. If an entity that has books restricted or diminished access to the book because a parent (or other group) complained, PEN would consider that a book ban. That is a rigorous and unbiased definition of a book ban.