The Chicago Manual of Style Online is the venerable, time-tested guide to style, usage, and grammar in an accessible online format. ¶ It is the indispensable reference for writers, editors, …

Chicago-style source citations come in two varieties: (1) notes and bibliography and (2) author-date. If you already know which system to use, follow one of the links above to see sample …

The Chicago Manual of Style, 17th ed. Chicago: University of Chicago Press, 2017. https://doi.org/10.7208/cmos17

For more details and many more examples, see chapters 13 and 14 of The Chicago Manual of Style. For examples of the same citations using the author-date system, follow the Author …

The Chicago Manual of Style, 18th ed. University of Chicago Press, 2024. https://doi.org/10.7208/cmos18

For more details and many more examples, see chapters 13 and 14 of The Chicago Manual of Style. For examples of the same citations using the notes and bibliography system, follow the …

The following is a list of the more significant changes, clarifications, updates, and additions to The Chicago Manual of Style for the 18th edition. Items in the list are keyed to paragraph numbers …

Now in its 18th edition, The Chicago Manual of Style —with more than a thousand pages in print or more than two thousand hyperlinked paragraphs online—has become the authoritative …

Jul 7, 2025 · Subscriptions to The Chicago Manual of Style Online include access to the full contents of the 18th and 17th editions. We also offer free individual trial subscriptions.

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