Build a Working Bibliography Before You Start Writing

A working bibliography is a live record of the sources you find, assess, read, and may eventually cite. Build it before drafting your IB Extended Essay so that every quotation, statistic, interpretation, and counterargument remains connected to its origin.

A useful working bibliography records publication details, relevant pages, a brief evaluation, and the role each source might play. During the September-to-November fall term, it can help you refine your research question, identify gaps, and begin writing with organized evidence.

What a working bibliography does

A final bibliography, reference list, or works cited section helps readers locate sources. A working bibliography is an earlier research-management tool that changes as your investigation develops.

For each promising source, you should know:

• what it argues or contains
• why it is credible and relevant
• which part of the research question it addresses
• where the useful evidence appears
• how it agrees or conflicts with other sources
• whether you are likely to cite it

The IB describes the Extended Essay as an independent research project culminating in a 4,000-word paper. There is no official minimum number of sources that guarantees a particular result. Suitable evidence varies by subject, so check the current guide and subject-specific instructions.

A literature essay may rely on primary texts and scholarly criticism. History can combine primary documents with competing interpretations, while a science essay might use experimental data, methodological literature, and published studies.

Set up the bibliography before searching

Choose one system you can maintain consistently. A spreadsheet is sufficient for many students, while Zotero is useful when handling numerous articles, PDFs, or editions.

Save PDFs, scans, datasets, or stable links where legally permitted. Consistent file names such as Author_Year_ShortTitle.pdf make evidence easier to retrieve.

Zotero's official quick-start guide explains how to collect references and generate citations. Cornell University Library's citation-management overview clarifies what reference-management software can do. Imported metadata can be incomplete, so always compare it with the original source.

Build from the research question outward

Break your working question into searchable components:

1. Core concept: The event, text, phenomenon, or relationship being investigated.
2. Boundary: The period, location, population, texts, or dataset limiting the inquiry.
3. Analytical lens: The theory, method, comparison, or disciplinary concept being applied.
4. Alternative view: A competing explanation or interpretation worth testing.

For a History question about the significance of economic factors in causing a political event, categories could include contemporary economic data, political speeches, economic interpretations, and historians emphasizing alternative causes. This prevents the bibliography from becoming a collection of general background reading.

The RevisionDojo guide to finding strong EE sources recommends checking whether evidence is credible, usable, relevant, and capable of supporting analysis. If important categories remain empty, refine the question before drafting.

Evaluate every source before using it

Apply four tests:

• Authority: Who created the source, and what relevant expertise do they have?
• Evidence: Does it explain its data, method, documentation, or textual basis?
• Relevance: Does it answer your precise question rather than discuss only the topic?
• Limitations: Is it outdated, biased, translated, narrowly sampled, or methodologically weak?

Evaluation must reflect the discipline. A government report may be authoritative for official statistics while reflecting policy priorities. A memoir may be unreliable as a neutral account but valuable as evidence of one participant's perspective.

Record rejected sources and explain why. This prevents you from repeatedly reconsidering weak material. The RevisionDojo EE topic checklist can also help you decide whether enough credible and accessible evidence exists.

Turn entries into drafting material

After reading a source, add three notes:

• Claim: What responsible argument could this source support?
• Evidence: Which passage, result, example, or dataset supports it?
• Analysis: Why does that evidence matter for the research question?

Record page numbers immediately, including for paraphrases. Tag sources by function, using labels such as supports, challenges, defines, method, and limitation. This encourages synthesis instead of producing one paragraph about each source.

The RevisionDojo EE research-process guide explains how to organize evidence into argument units. Record important changes and research decisions in your Researcher's Reflection Space.

Follow a September-to-November plan

This is practical advice, not an official IB deadline. Your school determines its internal schedule.

Use one weekly session for searching and another for reading and annotation. Separating these tasks reduces the temptation to collect sources faster than you can evaluate them.

Apply IB citation rules correctly

The IB's Effective citing and referencing guide explains that external material must be acknowledged at the point of use. Listing a source only in the bibliography is insufficient. Quotations, paraphrases, summaries, images, tables, data, translations, and adapted ideas require acknowledgment.

The IB does not impose one universal citation style across all subjects. Use the recognized style agreed with your school or supervisor and apply it consistently. Your final section may be called Bibliography, References, or Works Cited, depending on the convention and its contents.

The RevisionDojo explanation of reference lists and bibliographies clarifies these distinctions. The IB's academic integrity policy also emphasizes clear acknowledgment and organized notes. Never use Jojo AI or another tool to invent references, quotations, page numbers, or evaluations.

Common mistakes to avoid

• Saving only a URL instead of complete publication details
• Copying quotations without recording exact page numbers
• treating research as a source-count competition
• using only evidence that supports your initial view
• trusting automatically generated citations without checking them
• drafting first and attempting to attach sources later
• organizing notes only by author rather than claim or question

Conclusion

To build a working bibliography before you start writing, create the system first, search from a focused question, evaluate each source, record page-specific evidence, and classify material by argumentative role. By November, it should function as an evidence map rather than an untouched list.

RevisionDojo's Extended Essay guides can support question refinement and subject-specific planning. Jojo AI can suggest search terms or evaluation questions, but you must verify its suggestions and keep the research judgments and writing your own.

Sources and referenced URLs

• International Baccalaureate: Extended Essay overview
• International Baccalaureate: DP Extended Essay updates
• International Baccalaureate: Effective citing and referencing
• International Baccalaureate: Academic integrity policy
• Zotero: Quick-start guide
• Cornell University Library: Citation management
• RevisionDojo: Extended Essay guides
• RevisionDojo: Best sources for Extended Essay research
• RevisionDojo: Extended Essay topic checklist
• RevisionDojo: Surviving the Extended Essay research process
• RevisionDojo: Researcher's Reflection Space
• RevisionDojo: Reference list versus bibliography