Emailing a professor or principal investigator for the first time

Academic email follows a set of conventions that are rarely written down and almost never taught, yet students are often expected to know them. This guide makes those conventions explicit, focusing on students in Tunisia while also addressing anyone contacting a professor or principal investigator for the first time across linguistic and cultural boundaries. It covers the key elements of effective academic correspondence: choosing one language and using it consistently rather than switching between French, English, and Tunisian Arabic; writing a clear subject line that identifies the sender, programme, and purpose; choosing an appropriate greeting across different academic cultures; keeping the message concise and focused; and knowing how to approach a principal investigator abroad, particularly when explaining motivation, funding, and attachments. It also addresses when messaging applications and social media are inappropriate for academic communication, how to proofread for tone as well as grammar, how to use professional sign-offs and signature blocks, and how to use AI tools for proofreading without losing one's own voice. The central message is simple: a good first academic email should be short, clear, polite, and unremarkable. Paradoxically, that is precisely what makes it effective.