In cinema a pressbook may be a piece of promotional material

Promotion (marketing)

Promotion is one of the four elements of marketing mix . It is the communication link between sellers and buyers for the purpose of influencing, informing, or persuading a potential buyer's purchasing decision....

 created and distributed by film producer

Film producer

A film producer oversees and delivers a film project to all relevant parties while preserving the integrity, voice and vision of the film. They will also often take on some financial risk by using their own money, especially during the pre-production period, before a film is fully financed.The...

s in order to market their films. Prior to 1980, most film companies did their own promotion, and the pressbooks would be given to exhibitors.

Pressbooks generally contained information on the stars of the film, illustrations of film posters or newspaper advertisements, notes that could be planted in newspaper

Newspaper

A newspaper is a scheduled publication containing news of current events, informative articles, diverse features and advertising. It usually is printed on relatively inexpensive, low-grade paper such as newsprint. By 2007, there were 6580 daily newspapers in the world selling 395 million copies a...

 features or blurb

Blurb

A blurb is a short summary or some words of praise accompanying a creative work, usually used on books without giving away any details, that is usually referring to the words on the back of the book jacket but also commonly seen on DVD and video cases, web portals, and news websites.- History :The...

s, ideas for exploitation

Exploitation

This article discusses the term exploitation in the meaning of using something in an unjust or cruel manner.- As unjust benefit :In political economy, economics, and sociology, exploitation involves a persistent social relationship in which certain persons are being mistreated or unfairly used for...

 campaigns, and other promotional materials including ready-made film reviews, souvenir

Souvenir

A souvenir , memento, keepsake or token of remembrance is an object a person acquires for the memories the owner associates with it. The term souvenir brings to mind the mass-produced kitsch that is the main commodity of souvenir and gift shops in many tourist traps around the world...

-style giveaways and listings of various tie-in

Tie-in

A tie-in is an authorized product based on a media property a company is releasing, such as a movie or video/DVD, computer game, video game, television program/television series, board game, web site, role-playing game or literary property...

s with the film.

It should be distinguished from a press book, which is a collection of works and communications used to represent an individual, group of individuals, service, company or product.
It is usually associated with creative professionals.
It may be textual, graphic (photo, illustration,painting...), animated (video/film,3D...), or algorythmic (games...).

It may include press releases, advertisings, editorials, instructions for use, or any information that pertains to that person/product, or of works and communications used to represent an individual, group of individuals, service, company, or product.
It is usually associated with creative professionals.