The cold-email playbook
How to write to a stranger — a professor, a lab manager, a studio, a nonprofit — and actually hear back. Subject line, three sentences, one attachment.
01Start by remembering they're a person
The person you're emailing is busy, a little tired, and probably reading on their phone between two other things. They are not gatekeeping you. They just don't have time to decode a long message from someone they don't know.
Your job isn't to convince them to take you on. It's to make replying easy. One short message. One clear ask. One thing to open if they're curious.
02The subject line
Be specific about who you are and what you read. A good template: 'Student interested in [the exact thing they work on]' — where the bracket comes straight from their page, a recent project, or a paper title.
Example: 'Student interested in your work on coral bleaching in the Andaman Sea.' That one line tells them you're real, you looked, and you're not sending the same email to forty people.
03The three-sentence body
Sentence 1 — who you are, in one line. Your year, your school or city, one detail that places you in context. Skip the full biography.
Sentence 2 — why them, specifically. One thing from their work that stuck with you, and why. A method, a result, a question they left open. This is the sentence that earns the reply.
Sentence 3 — the ask. Small and clear: a 15-minute call, a short reply pointing you to a resource, a chance to help with something simple over the summer. Make it easy to say yes.
No paragraph about your grades. No 'it would be an honor.' No life story. Warm, brief, specific.
04The attachment that gets opened
One PDF. Your name in the filename, like 'Ana-Lopez-CV.pdf'. Not a Google Doc link they have to request access to. Not a Word file that opens differently on every machine.
Put what's most relevant to them at the top, even if it isn't the most impressive thing you've ever done. A small project that touches their field beats a long list of unrelated achievements.
05When to send, and how to follow up
Tuesday through Thursday, mid-morning in their timezone, tends to land best. Mondays are inbox triage; Fridays are already gone.
If you don't hear back in seven to ten days, send one short follow-up: 'Bumping this gently in case it got buried — happy to share more if it's useful.' Then let it go.
Most people send two or three messages and decide the world said no. The ones who get a yes usually sent fifteen or twenty. It isn't because you aren't good enough. It's because inboxes are loud. Keep going.