What is perhaps most special about this book is that it is true. Emerson Weber is a real South Dakotan girl with a passion for writing letters, and one day she wrote a thank you letter to her mail carrier, Doug. He shared it with the USPS network, and Emerson began receiving heaps and piles of letters in return---all because she said thank you. This book is a moving and inspirational testament to the power of writing a letter and connecting with the people we regularly interact with in the world, accompanied by the most charming illustrations.