The Red Cross Book (RCB) is the unofficial name of a Japanese pamphlet that was sold in movie theaters at the time of the film's release. The book is printed on A-4 sized paper, with the cover consisting of the St George's Cross over a black background and the film's title printed on it. The book is essentially a canon glossary, authored by Gainax and various members of both the Evangelion TV series and film staff, of many of the terms used in the TV series, manga, and the two films to introduce the film's history. It also includes an interview with Tsurumaki, a listing of voice actors and brief essays written by them on their respective characters, short biographical sketches, commentary on the TV series and production of the movies, and a "Notes" section covering the setting of the films.