How can one properly write a PhD title after their name?

The proper way to write a PhD title after your name depends on your field and local conventions, but generally follows these guidelines:

* "PhD" or "Ph.D.": Both are acceptable. Consistency is key; choose one and stick with it. "Ph.D." is more common in North America.

* Placement: It typically follows your name and any other earned degrees. For example:

* Jane Doe, PhD

* Jane Doe, Ph.D.

* Jane Doe, MA, PhD

* Jane Doe, BSc, PhD

* Capitalization: "PhD" or "Ph.D." is usually capitalized.

* Punctuation: Use a comma to separate your name and the degree.

* Field-Specific Titles: In some fields (e.g., medicine), postnominal letters might indicate specific board certifications or fellowships, which would then follow the PhD. For example: Jane Doe, PhD, MD, FRCS. Always maintain consistent punctuation.

* Avoid unnecessary detail: Don't include the dissertation title or your university's name.

* Professional contexts: In some professional contexts (like a resume or CV), you may list your PhD along with more details (university, year of graduation, dissertation title) in a separate section.

In short: "Jane Doe, PhD" or "Jane Doe, Ph.D." is generally correct and sufficient for most purposes. Use your judgment based on the specific context and any relevant field conventions.