Writing
Writing the fit paragraph

In short
A fit paragraph should name two or three faculty, reference work published in roughly the last three years, state what question that work leaves open, and say what you would do about it with the preparation you already have. Naming more people, praising the department, or citing a professor's oldest famous paper all read as searching rather than reading.
This is the highest-leverage paragraph in a research application, and it only applies if the programme is research: check [thesis or course-based](/guides/thesis-or-course-based-masters) first. It is also the one most applicants write last, at midnight, from the faculty directory. It is also the only paragraph the reader treats as evidence that you meant this application specifically.
How to find the right two or three people
Start from the department's recent publications rather than the faculty list. Look at what has come out of the group in the last two or three years, and at which of those authors are still at the institution. Then check whether the professor has recently taken students: a lab page with no current PhD students, or a supervisor listed as not accepting, is a dead end regardless of fit.
Read two papers properly. Not the abstract, the discussion and limitations sections, because that is where authors say what they could not do. What they could not do is your opening.
The shape of the paragraph
Four moves, in about 120 words. Name the work. State the open question it leaves. Connect it to something you have actually done. Say what you would want to try.
The connection is what makes it a fit claim rather than an admiration claim. If your preparation does not connect, you have found interesting work by someone who is not your supervisor, and the honest response is to keep looking.
- Name: the group, the recent work, one specific finding
- Gap: what remains unresolved, in their framing rather than yours
- Bridge: the method, dataset or experience you bring to it
- Intent: what you would attempt first, stated modestly
Three versions that fail
The flattery version praises the department's reputation and resources and names nobody. It could be sent anywhere and usually has been.
The list version names six professors, which tells the committee you have no direction and are hoping one of them bites. Two or three is a claim; six is a hedge.
The mismatch version names a professor whose work is genuinely interesting and unrelated to everything else in your statement. Readers notice the seam.
Taught programmes: the same job, different objects
For a course-based master's, faculty names are often the wrong currency. The fit paragraph should instead name the modules, the specialisation stream and the capstone or industry project, and connect them to the professional outcome you described earlier.
The underlying move is identical: something specific to this programme, connected to something specific about you.
Related questions
Should I email professors before mentioning them in my SOP?
For PhD applications, usually yes. A short, specific email about their recent work tells you whether they are taking students, which is information you cannot get from the website. If they reply positively, referencing that correspondence in the statement is legitimate and useful.
How many professors should I name?
Two or three. One reads as a single point of failure if that person is not admitting; more than three reads as a list rather than a direction.