Definition of term:: Review slip

  • A small printed piece of paper either laid into or affixed to a regular trade edition of a book, sent to reviewers, in order or the publisher to stimulate interest in the book. Usually sent out before the official day of publication, so the reviewer can prepare his review to appear when the book is officially published, these command a premium among those that want the earliest distributed copies of a book, which after all, is one of the reasons people collect first editions in the first place.
French: Review slip
German: Waschzettel
Source: What bookdealers really mean. A dictionary by Tom Congalton and Dan Gregory (Between the Covers), with additions from other sources