When you know what you want to say, but you can't find the words to say it…
A letter of appreciation is something the recipient may keep throughout his or her life. Human beings treasure that other people appreciate them, their work, or their friendship. Even if the person is close to you—your parent, sibling, child, or a close friend you don't NEED to write to—a letter of appreciation is always welcome, and almost always touching for the recipient and gratifying for you.
Here are sample letters of appreciation. Each letter was written in Microsoft® Word® (ending in .doc) using the font Times, and also saved in .pdf and .swf formats. Unless you actually removed it from your font list, Times is available on your computer. These letters can be copied and pasted into Microsoft® Word® or any other word processing application including text editors, and changed to suit your needs.
Remember to make the letter yours by using stationery and an appropriate font.