There are two types of letters in this section: Protest letters to unethical design contest holders, and letters in response to spec work requests.
A few spec work refusal letters are below.
AIGA: standard letter on speculative work (PDF download)
Clients may, at times, request you to do speculative work — that is, work done for no cost. This sample letter is intended to serve as a resource when you communicate with these clients. You can modify it based on the needs of your particular situation.
creativebits.org: Spec work letter
supernicestudio.com: I won’t do free design work to win your business — here’s why
gracesmith.co.uk: How to say no to spec work requests + letter download
sagemedia.ca: A response to spec work requests
Please read our protocol and disclaimer before embarking on the initiative.
If you have questions or suggestions, contact us.