Set your biblatex bibliography style and fix missing references.

Modern LaTeX uses biblatex with biber as its backend. This separates the raw bibliographic data from the formatting instructions and lets you change how citations and references look by editing an option rather than swapping a separate style file.

Here is a minimal working document showing how to load the package, set a style, import a .bib database, and print the references.

Put this code in your main document. Make sure your bibliography file shares the folder with your .tex source, and remember to include the .file extension in the resource declaration.

When a publisher requires strict adherence to a style guide, built-in options are often not enough. Specialized style packages plug into biblatex to handle exact rules without manual overrides.

For American Psychological Association rules, load biblatex-apa and declare the language mapping in your preamble.

For engineering and IEEE manuscripts, load biblatex-ieee. For Chicago author-date or notes-and-bibliography conventions, use biblatex-chicago.

By default, biblatex sorts the bibliography alphabetically by author name. You can change this behavior with package options.

Setting sorting=none prints references in the exact order they are first cited in your text. This is standard for preprints and journals that want reference numbers to match reading order.

Setting sorting=nyt sorts by name, year, and title, while sorting=none keeps citation order intact.

The most common reason for missing citations or an empty bibliography is a skipped intermediate compile pass. Classic BibTeX used a .bst file and the bibtex program, but biblatex relies on biber.

When you edit your .bib file or add a new citation, your editor must run biber between two LaTeX passes. The full sequence is pdflatex, then biber, then pdflatex twice. Online editors like Texeno run this sequence automatically when you compile.