Nature Formatting Requirements: Complete Author Guide

Nature's abstract is a single, unstructured paragraph. No subheadings, no Background/Methods/Results/Conclusions structure.

• Word limit: 150 words maximum
• Structure: Unstructured (single paragraph)
• Citations: Not allowed in the abstract
• Keywords: Nature doesn't require author-submitted keywords. The editorial team assigns subject terms and indexing keywords internally.

The 150-word abstract needs to state the problem, describe the approach at a high level, and present the main finding. Don't waste words on general background ("Cancer is a leading cause of death worldwide"). Start with the specific gap your work addresses.

A formatting detail that gets missed: Nature's abstract should not contain references. Some authors cite a key prior paper in the abstract out of habit. The production team will flag this and send it back.

Nature is strict about display items. The total number of figures and tables combined cannot exceed 6 for an Article.

Figure specifications:

Extended Data: Nature allows up to 10 Extended Data figures or tables. These are peer-reviewed and published alongside the article, but they don't count toward the 6-item display limit. Extended Data items appear after the main text in the online version. This is where most authors put supplementary experiments, additional controls, and detailed breakdowns that support but don't drive the narrative.

Source Data: Raw, unprocessed data underlying figures can be uploaded as Source Data files. These aren't display items and have no formal count limit, but they must be clearly labeled and linked to specific figures.

Multi-panel figures are common in Nature. A single "figure" might contain panels a through h. There's no formal limit on panel count per figure, but the editorial team will push back if a figure becomes unreadable at print size. As a practical guideline, keep it under 8 panels per figure.

Nature uses its own citation style, commonly called "Nature style." It's a numbered sequential system.

In-text citations: Superscript numbers (e.g., "as shown previously^1,2"). No brackets, no parentheses, just superscript. Numbers are assigned in the order references first appear.

Reference list format:

1. Author, A. B., Author, C. D. & Author, E. F. Title of article. Journal Name Volume, Pages (Year).

Key formatting details:

• Author names: Last name, followed by initials with no periods (e.g., "Smith, J. K.").
• Use "&" before the last author, not "and."
• Journal names are abbreviated according to ISO 4 standards.
• Volume numbers are in bold.
• No issue numbers for most journals.
• Page ranges use an en dash (e.g., 123-128), not a hyphen in the final typeset version, though the manuscript can use hyphens.
• DOIs are not required in the reference list but are encouraged.

Nature's reference cap is approximately 30 for Articles. This is a soft limit enforced editorially. If you're at 35, you might be fine. At 45, you'll be asked to cut. Reviews get roughly 50 references.

The reference list comes before the Methods section. This is a Nature-specific quirk that confuses authors used to traditional journal layouts. The order is: main text, references, Methods, then figure legends.

Nature distinguishes between three categories of supplementary content, and the distinction matters:

1. Extended Data (peer-reviewed): Up to 10 figures or tables. These go through full peer review and are published as part of the article record. They appear in the HTML version of the paper and in the PDF's supplementary section.

1. Supplementary Information (peer-reviewed): Additional text, tables, figures, videos, or datasets that don't fit in Extended Data format. This includes supplementary notes, supplementary tables (beyond the 10 Extended Data items), and supplementary videos. These are also peer-reviewed but hosted as separate downloadable files.

1. Source Data (peer-reviewed): Raw data underlying specific figures. Uploaded as separate files, linked to individual figure panels.

There's a size limit of 50 MB per individual supplementary file. For larger datasets, Nature requires deposition in a public repository (like GEO, PRIDE, or GenBank) with the accession number cited in the paper.

Supplementary Tables should be in Excel format when possible, not as images or PDFs. This is a specific requirement that Nature editors enforce during production.

Nature doesn't require a traditional cover page with the manuscript submission. Instead, the submission system collects metadata separately:

• Title: Entered in the submission system, not on a cover page. Maximum ~90 characters recommended.
• Author list and affiliations: Entered through the system's author management interface.
• Corresponding author: Designated in the system, with email address.
• Cover letter: Submitted as a separate file or pasted into the system. This is mandatory and should explain why the work is appropriate for Nature's audience.

The cover letter is where many authors lose before review even starts. Nature's editors use it to gauge whether the work has the breadth and impact for a general-science audience. A technical summary that reads like an abstract won't do the job. The cover letter should explicitly state what's new, why it matters beyond your subfield, and why Nature (specifically) is the right venue.

ORCID iDs: Nature requires the corresponding author to have an ORCID iD. Co-authors are encouraged but not required to provide theirs.

These are the details that experienced Nature authors know but that don't show up in summary guides:

Methods go after references. This is Nature's most distinctive structural choice. The Methods section (titled "Methods" with no further subheading requirements) appears after the reference list, not at the end of the main text. This means your paper reads as: Introduction (untitled), Results, Discussion, References, Methods. Many authors format the Methods in the standard position and get the manuscript returned at production.

No "Introduction" heading. The opening section of a Nature Article has no heading. You start the paper directly with text. The first heading that appears is typically "Results" or the first results subheading. This is disorienting for authors coming from journals that require explicit Introduction/Methods/Results/Discussion structure.

Life Sciences Reporting Summary. All life sciences papers must complete a Reporting Summary checklist at the revision stage. This is a standardized form covering statistical methods, reagent validation, data availability, and ethical approvals. It's published alongside the paper and is not optional.

Data Availability Statement. Mandatory. Must appear after the Methods section. Must specify exactly where all data can be accessed, including accession numbers, repository URLs, and any access restrictions.

Code Availability Statement. If custom code was used in the analysis, a Code Availability Statement is also required, with the code deposited in a public repository (GitHub, Zenodo, etc.).

Author Contributions section. Required for all Articles. Must list each author's specific contributions using descriptive text (not CRediT taxonomy, though CRediT is accepted). This appears after the Methods.

Title length. Nature titles should not contain colons, abbreviations, or active verbs in most cases. The preferred style is a concise noun phrase. "A single-cell atlas of human liver development" works. "Mapping the human liver at single-cell resolution reveals unexpected heterogeneity" is too long and too active for Nature's style.

Even experienced authors get tripped up by these:

1. Figure legends are separate. Figure legends don't go under the figures. They go in a separate section after the Methods, listed sequentially. Each legend starts with a bold title line followed by descriptive text.

1. Line spacing. Nature requires double-spacing for the initial and revised manuscript. Single-spaced submissions will be returned.

1. Page numbers and line numbers. Required on all manuscript pages for review purposes. Many authors forget line numbers, which makes reviewer comments much harder to link to specific text.

1. Equations. Number equations sequentially. Use MathType in Word or standard LaTeX equation environments. Don't embed equations as images.

1. Abbreviations. Define at first use in the abstract and again at first use in the main text. The abstract and body are treated as separate documents for abbreviation purposes.