Internships end fast: a guestbook gives everyone time to say thanks, share concrete learnings and strengthen employer brand.
"Thanks for your curiosity—your questions pushed us forward."
"Great work quality—keep that momentum."
"Keep the link: reread it whenever you need a confidence boost."
Yes, the format is the same: collect team feedback.
No, invite as many people as needed.
Yes, PDF is available for archiving or sending to the intern.
One creator for the board; contributors use the link.