What the EUA Is
The Expanded Universe Atlas is a volunteer-run, non-commercial archive cataloguing officially published expanded universe works — novels, comics, audio dramas, games, and more — across 25+ major franchises.
Every franchise goes deeper than the films and series. The EUA makes that depth visible and navigable: one structured index recording publication order, regional availability, and cross-media relationships for every entry. No privileged continuity. No rankings. Just a complete, accurate record of what exists and where to find it.
The EUA carries no advertising, is not affiliated with any rights holder, and will never charge for access.
These works often sit scattered across formats, publishers, and decades — making it difficult for fans to know what exists, how it connects, or where to begin. The purpose of the EUA is not merely archival. It is to support the emotional and imaginative lives of readers.
By helping fans discover new stories, understand how narrative threads interrelate, and reconnect with characters they care about, the EUA strengthens the role these worlds play in relaxation, reflection, and personal growth. By highlighting region-locked, out-of-print, or inaccessible works, it also supports informed advocacy for broader availability.
Your contributions become part of a permanent record, findable by every fan who comes after you. A correct identifier, a verified publication date, a properly sourced availability note — each makes the archive more trustworthy and more useful for every reader who discovers it.
Your Role as a Contributor
Contributors are the backbone of franchise accuracy. Your work sits at the entry level of a four-tier structure, supported by Tab Leads and Franchise Leads who review and approve your submissions.
- Add new entries across media types — novels, comics, audio, games, and more
- Verify identifiers (ISBN, ASIN, Wikidata QID) against reliable sources
- Confirm regional availability and flag access restrictions
- Add placement and continuity notes where evidence supports them
- Maintain metadata accuracy and flag gaps for your Tab Lead
- Escalate ambiguity early rather than guessing
Contributors do not modify schema, structure, or system tabs. They do not make governance decisions or activate relational tabs. If you encounter something that requires a structural change, escalate it — that is not a failure, it is the system working correctly.
Five Principles
Every contribution to the EUA — however small — is grounded in five principles. These are not aspirational; they define what an acceptable entry looks like.
All metadata must be supported by verifiable sources. No speculation, no memory, no assumption.
Notes must be descriptive, not interpretive. Record what is there; do not analyse or evaluate it.
All entries follow the Field Specification Master exactly. Formatting, codes, and identifiers are not optional.
All decisions are documented. If you made a choice, record why and what source supports it.
Contributors work with Tab Leads and Franchise Leads. The escalation chain exists to help, not to judge.
Getting Started
You do not need to read everything before your first contribution. Follow these three steps and you will be contributing real value within the hour.
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1Choose a franchise you already know
Open its EUA sheet. Review the visible tabs — NOV for novels, COM for comics, AUD for audio, and so on. Look at the OVW tab for franchise-specific notes. Familiarity with the material is your biggest asset.
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2Review the core reference documents
Before adding data, skim the Metadata Schema Quick Reference to understand field groups. You do not need to memorise the Field Specification Master — but you should know where it is and how to look something up in it.
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3Complete a starter task
Begin with a microtask: verify three identifiers, confirm one availability field, or add one missing Wayback link. These build confidence with the schema and produce immediate, real value.
EUA contributors are welcome to use AI tools for research. What matters is that every entry is verified against a reliable source before submission. AI-assisted research is welcome; unverified data is not.
Understanding the Schema
Every row in an EUA franchise sheet follows a strict, standardised schema. Columns are grouped into functional zones. The full definitions live in the Field Specification Master — this overview covers what you need to contribute accurately.
Field groups
| Zone | What it records | Examples |
|---|---|---|
| Identification | What the work is and when it was published | Title, media type code, publication date |
| External identifiers | Persistent IDs linking to external databases | ISBN-13, ASIN, Wikidata QID, GoodReads ID |
| Availability | Where the work can be accessed, globally and by territory | Global availability, UK, US, Australia flags |
| Placement | Where the work sits within the franchise narrative | Macro container, story arc, placement source |
| Continuity | How the work relates to other entries | Retcons, contradictions, expansions |
| Source & archive | Where the metadata was found and preserved | Source URL, Wayback Machine archive link |
| Contributor | Who added or verified the entry, and when | Handle, verification status, date |
Media type codes
| Code | Format |
|---|---|
| NOV | Novels & prose fiction |
| SHO | Short stories & anthologies |
| COM | Comics & graphic novels |
| AUD | Audio dramas & audio originals |
| MUS | Music & soundtracks |
| FLM | Films (anchor entries only) |
| LTV | Live-action television (anchor entries only) |
| NFI | Non-fiction, guides, art books |
Identifier rules
- Always use ISBN-13 (13 digits, beginning 978 or 979) — never ISBN-10
- Use ASIN for digital-only releases where no ISBN exists
- Use Wikidata QID (format: Q followed by a number) for cross-database linking
- Verify all identifiers against the source directly — do not copy from aggregators without checking
- If an identifier cannot be confirmed, leave the field blank and note the gap — do not estimate
Adding Entries
Every new entry must be complete enough to be useful and honest enough to be trusted. Required fields must be populated before an entry is marked ready for review.
Required fields
| Field | Status | Notes |
|---|---|---|
| Title | Required | Exact official title, capitalisation matched to source |
| Media type code | Required | Three-letter code (NOV, COM, AUD, etc.) |
| Publication date | Required | ISO format YYYY-MM-DD; use YYYY-MM or YYYY if incomplete |
| Primary identifier | Required | ISBN-13 or ASIN; Wikidata QID where available |
| Global availability | Required | Yes / No / Unknown — supported by a source |
| Source URL | Required | Direct, accessible link to the source used |
| Contributor fields | Required | Your handle and the date of contribution |
| Wayback link | Recommended | Archived version of source URL via archive.org |
| Placement note | If known | Only add if evidence is available — blank is better than speculative |
| Continuity note | If known | Only if a retcon, contradiction, or expansion can be sourced |
The EUA organises entries by publication date, not by narrative chronology. A novel published in 2003 that is set before events from 1999 is listed by its 2003 publication date. This rule is fixed and applies to every franchise without exception.
What counts as expanded universe
Primary narrative works — films, mainline television, core games — are not expanded universe material. They appear in franchise sheets only as relational anchors. Everything officially published beyond those primary works is in scope: novels, comics, audio dramas, short stories, non-fiction companions, soundtracks, stage productions, and more.
Verification Standards
Before marking any entry as verified, you must have confirmed each field against a reliable source directly — not copied from another archive, aggregator, or AI output without cross-checking.
Verification checklist
- ISBN-13 validated against WorldCat, GoodReads, or the publisher's own catalogue
- Publication date confirmed against the publisher or a primary retail source
- Availability confirmed against a current, accessible source — not assumed from age or reputation
- Source URL is direct, accessible, and points specifically to the work (not a homepage)
- Wayback link captured for the source URL
- Contributor fields completed with your handle and today's date
Verification tiers
| Status | Meaning |
|---|---|
| Contributor-verified | Contributor has checked all required fields against sources |
| Tab Lead-reviewed | Tab Lead has audited the entry for accuracy and completeness |
| Franchise Lead-approved | Required for TIM entries and complex placement decisions |
If a field cannot be confirmed but the entry is otherwise complete, mark it HOLD and note what is missing and why. A held entry with honest gaps is more useful than a complete entry with guessed values.
Starter Tasks
The most valuable first contributions are verification and gap-finding. If you know a franchise, you already have what it takes. Start wherever feels right — even a single microtask produces real value.
Microtasks · 2–5 minutes
Pick any three entries in a visible tab. Confirm the ISBN-13 or ASIN against WorldCat or the publisher. If it matches, mark verified. If not, note the correct value and flag to your Tab Lead.
Find a source URL without an archived version. Go to archive.org, capture the snapshot, and add the archived link to the appropriate field.
Find an entry with a missing or uncertain release date. Locate the original publication date from a reliable source and add it in ISO format (YYYY-MM-DD).
Choose one entry and confirm global availability is correct, at least one territorial field is accurate, and the source URL supports the claim.
Beginner tasks · 5–15 minutes
Choose a tie-in work not yet in the sheet. Add title, date, ISBN/ASIN/QID, availability, source URL and Wayback link, and your contributor fields. Follow the Field Specification Master for required fields.
Select an entry with missing continuity information. Add a descriptive note with a supporting source. Use only permitted language — "Introduces", "Contradicts", "Expands", "Retcons".
Scan a tab for entries duplicated by a retitle, reprint, or variant edition. Document what you find and notify your Tab Lead rather than resolving it yourself.
Intermediate tasks · 15–30 minutes
Select one entry and verify every field: identifiers, availability, placement and continuity notes, contributor and verification fields. Update the verification status with your findings.
Choose 2–4 related works — a trilogy, a comic arc, a soundtrack series. Add each with consistent identifiers, placement notes, and continuity notes where appropriate.
Choose a tab and identify missing identifiers, availability fields, and placement notes. Document findings in Contributor Notes or notify the Tab Lead.
Escalation
Escalation is not a sign that something went wrong — it is how the EUA maintains accuracy in genuinely complex cases. When you are unsure, escalate. Do not guess and do not delay.
Escalate when
- Classification is unclear — you are not sure which tab a work belongs in
- Placement evidence conflicts — two sources point to different positions
- Continuity is genuinely ambiguous — you cannot write a neutral, sourced note
- A work spans multiple media types and you are unsure how to handle it
- An identifier does not exist in any database
- Something in the schema does not fit the work you are cataloguing
The escalation chain
When escalating, provide: the entry in question, the ambiguity you have identified, and the evidence you have found so far. Your Tab Lead will take it from there.
Language & Notes
The language you use in notes is as important as the data you record. Every note must be descriptive and neutral — it records what is there, not what you think it means.
Permitted placement language
- "Occurs before…"
- "Occurs after…"
- "Parallel to…"
- "Set during…"
"Probably occurs…", "Seems to take place…", "Implied to be…" — none of these are acceptable. If the placement cannot be stated without hedging, it cannot yet be stated.
Permitted continuity language
- "Introduces…"
- "Contradicts…"
- "Expands…"
- "Retcons…"
"Suggests…", "Hints that…", "May imply…" — not acceptable. A continuity note records a verifiable relationship between works, nothing more.
One word that never appears in the EUA
The word canon does not appear anywhere in EUA metadata. Use the rights-holder's own designation where one exists, or mark the field Undesignated. The EUA records what is true, not what is privileged.
Common Errors to Avoid
These are the mistakes that appear most often in new contributions. Being aware of them now will save your Tab Lead time and protect the quality of the archive.
- ✕Using ISBN-10 instead of ISBN-13The EUA uses ISBN-13 only. If you have a 10-digit ISBN, convert it or locate the 13-digit version from the publisher's catalogue directly.
- ✕Copying identifiers from aggregators without verifyingGoodReads, Amazon, and other aggregators contain errors — particularly for edition-specific ISBNs. Always verify against the publisher or WorldCat.
- ✕Unsupported availability claimsDo not mark a work as globally available because it was once widely distributed. Verify current availability from an accessible source.
- ✕Speculative placementIf you cannot source a placement note from a reliable reference, leave the field blank and note the gap. "I think this comes after X" is not an EUA placement note.
- ✕Interpretive continuity notesNotes like "This story seems to suggest the character later changed" are analyses, not records. The EUA records verifiable relationships between works only.
- ✕Placing an entry in the wrong tabIf you are unsure which tab a work belongs in, check the Tab-by-Tab Methodology Reference before adding it. If still unclear, escalate — do not guess.
- ✕Using the word "canon"Never appears in EUA metadata. Use the rights-holder's designation, or mark the field Undesignated.
- ✕Leaving contributor fields blankYour handle and contribution date are required on every entry. They are what makes the archive transparent and maintainable over time.
Growth Path
There is no pressure to progress beyond the Contributor role — consistent, accurate contribution at any level is genuinely valuable. But if you want to take on more responsibility, the pathway is clear.
Progression is based on demonstrated competence — not time served or enthusiasm alone. Progression decisions rest with the Lead Archivist following quarterly reviews.
Ready to contribute?
Start with the Volunteer Intake Form to tell us which franchise and role interest you. Most contributors are making real contributions within the hour.
Open intake form Browse the atlas