Also, shortened citations are compact, so using ibid doesn’t always save line space. This is because ibid requires readers to go back and search for the previous source cited, an inconvenience which outweighs the benefits of shortening the citation. In the current version of Chicago, the 17th version, ibid is accepted but not preferred. This was meant to save space since it’s fewer characters than citing the source again. Writers would use ibid instead of writing out the source information again. Previous versions of the style used the abbreviation “ibid,” short for “ibidem.” Ibidem is a Latin word that means “in the same place.” It was used when referring to a source that was just cited within a document (without other sources in between).
If you are citing the same source continually throughout your text, use a shortened version of the full citation in your footnotes. If a source is used consecutively, follow these guidelines for shortened citation and ibid: "Marco Rubio's Campaign Must Adapt or Die." RedState.
If you’re wondering how to format Chicago in-text citations, Notes and Bibliography formatting requires writers to use footnotes and endnotes. How to Create Footnotes and Endnotes for Chicago Style
Need help with other styles? Our thorough MLA format and APA format guides are available for all of your writing and citing needs! Creating a Bibliography in Chicago Style
This guide displays the Notes and Bibliography style of referencing and is not associated with the official publishers of the style. There are two types of referencing styles in Chicago: 1) Notes and Bibliography and 2) Author-Date.
The Chicago Manual of Style, currently in its 16th edition, was created to help researchers properly cite their sources. The Ultimate Guide to Citing Anything in Chicago Style Everything you ever needed to know about citing sources from the Chicago Manual of Style The Basics of Citing in Chicago Style