Discover contains index cards that serve as a subject index for Discover magazine.The index cards provide a subject term, a brief description of a topic, and the date the topic was covered in the magazine. The topics covered include people, places, events, organizations, and objects. Only subjects starting with the letters C through Z are covered in this series.

Life contains index cards and microfilm images of index cards that act as a subject cross-reference to the American version of Life magazine. Each index card contains a subject term, a brief overview of a topic, and a date in which the topic was covered. Topics covered on the index cards include people, places, events, organizations, and objects. Dates on microfilm refer to the original contents and not the date of microfilm creation.

Life International contains index cards that act as a subject cross-reference for the version of Life magazine that was produced for audiences outside of the United States. Index cards within this series contain a subject term, a brief overview of a topic, and a date in which the topic was covered within its respective magazine. While the majority of subseries contain subjects with letters ranging from A through Z, some subseries may be missing alphabetical subject areas. Life en Espanol includes microfilm of index cards. The microfilm does not have dates so it isn't clear if it is a duplication of the physical cards or unique material.

People contains index cards with subject terms related to topics covered in People magazine. Each index card contains a subject term, a brief description of a topic, and a date in which the topic was covered in the magazine. The topics covered include people, places, events, organizations, and objects.

Sports Illustrated contains index cards that act as a cross-reference for subjects covered in Sports Illustrated magazine. Each index card cotains a subject term, a brief description of a topic, and a date in which the topic was covered in the magazine. The topics covered include people, places, events, organizations, and objects.

The Subject files contain index cards which act as a cross-reference for subject terms. Cards contain the term that a user would search by and then directs the user to the appropriate term under which materials related to that topic are filed. Some cards also include related topics. Topics that are covered include people, places, events, organizations, and objects. One photo was discovered with the materials and is filed alongside the index cards in Box 34.

Time contains index cards that serve as a directory for subject terms for Time magazine. Each index card contains a subject term, a brief description of a topic related to that term, and the date when the topic was covered in the magazine. The topics covered include people, places, events, organizations, and objects.

Time Advertising Promotion includes index cards which act as a directory for advertising campaigns which took place between 1923 and 1971 in Time magazine. Each index card contains a list of advertisements. Additionally, the cards sometimes include information about the edition the advertisement was in as well as memos, research report numbers, direct mail numbers, and miscellaneous notes.

Time Canada contains index cards that serve as a directory for subject terms. Each index card contains a subject term, a brief description of a topic related to that term, and the date when the topic was covered in the magazine. The topics covered on the index cards include people, places, events, organizations, and objects.

Time Inc. History Project contains index cards related to the research Alex Groner and Celia Sugarman completed for their project on the history of Times Inc. As part of their research, Groner and Sugarman created four sets of index cards. The Alumni Directory contains the names of those who worked at Time Inc. prior to 1958. Books by Time contains books that were either written by Time Inc staff or published by Time Inc in or prior to 1958. The Interview Names Index contains index cards with the names of those Groner and Sugarman interviewed as part of their project. These cards contain the person's name, the topics they were being interviewed about, and the date they were interviewed. Individual index cards sometimes contain the record of multiple interviews that were conducted with the same person. The Interview Subjects Index contains cards that act as a subject cross-reference to the Interview Names Index. These index cards contain a subject term, the name of the person who was interviewed, and the date the interview took place.

Time International contains index cards that serve as a subject cross-reference for Time International publications. Each index card contains a subject term, a brief description of a topic related to that term, and the date when the topic was covered in the magazine.

Time-Life International Advertising Promotion includes index cards which act as a directory for advertising campaigns. Each index card contains a list of information including summaries of advertising campaigns and the year the campaign took place. Sometimes research report, promotion, and memo numbers were included. Materials are from approximately the mid-1940s through 1966.

Index cards in the Unfiled series contain a subject term, a brief description of a topic, and a date. Materials from 1943 to 1987 only contain subject terms beginning with the letters A through W while materials from 1966 to 1968 contain subject terms beginning with the letters A through Z.