In this article, we offer some tips and examples to help you write a great thankyou letter to your manager. Learn how to write an employee appreciation letter with these templates and examples.Download the template for free (PDF or Word). Here's information on when and how to say thank you to your manager, with examples of the best way to relay your appreciation to your boss. Writing a letter of thanks to your boss for providing you with the opportunity to grow and learn in the company is a great way to express your appreciation. Place your full name, address, phone number, and email at the top of the letter. There are only so many ways you can email your boss, and in this guide you'll find 49 of them. Whether you want to thank your boss for a gift or for their ongoing support, this guide will help you find the right words. Thank you for your wholehearted support. You play such an important role in my professional life.