Special editions are often produced as hardbacks with decorative features such as cover embossing, silver cover accents, printed or illustrated page edges, and full-colour endpaper illustrations.

Pulp histories and studies often include scholarly analysis of publishing, production and marketing, biographies or author context, and are sometimes illustrated with hundreds of rare images and commissioned artwork.

Collections vary: some bring together multiple authors in anthologies, while others collect a single author's stories into a dedicated volume.

In the provided set, most items are in English and list a suggested age of 22 years and up.