Letter to a client whom you’ve asked to write a testimonial:Dear [Client],Working with clients like you makes my business a great joy. Thank you for agreeing to provide a testimonial. Your story will help inform our potential clients why it’s good to work with us and how they can benefit.To help you get started, I’ve included a few questions, but please feel free to write whatever you like.[Include two to four questions, using the above list as a guide.]Thank you for your time and kind support. We value your business and look forward to working with you again in the future. Please let me know if there is anything further I can do for you.[Your preferred closing],[Your name]