Thumb index

Today, Thumb index is a topic that has captured the attention of millions of people around the world. From its origins to its impact on modern society, Thumb index has been the subject of debate, research and speculation. With a history dating back centuries, Thumb index has evolved and adapted to cultural and technological changes, becoming a relevant topic today. In this article, we will explore the impact of Thumb index in different areas of daily life and its influence on contemporary society. Additionally, we will analyze the latest trends and discoveries related to Thumb index, offering a comprehensive view of its importance in today's world.

Not to be confused with edge index.
A dictionary with thumb indexes (on the right).

A thumb index, also called a cut-in index[1] or an index notch,[2] is a round cut-out in the pages of dictionaries, encyclopedias, Bibles and other large religious books, and various sectioned, often alphabetic, reference works, used to locate entries starting at a particular letter or section. The individual notches are called thumb cuts.

Several ways to achieve this indexing effect were invented and patented in the 1970s by Arthur S. Friedman, a printing engineer in New York.[3]

See also

References

  1. ^ "thumb index". Bookbinding and the Conservation of Books: A Dictionary of Descriptive Terminology. Foundation of the American Institute for Conservation. Retrieved 8 May 2012.
  2. ^ Popular Mechanics. Hearst Magazines. Sep 1956. p. 184.
  3. ^ "Google Patents". patents.google.com.


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