Dear Professor Dawkins,
As many of your readers, I have been brought up as a "Christian child", not realizing that I was in fact merely the child of Christian parents. I have recently left my faith behind and now consider myself an Atheist, with pride I might add. Your book has provided me with the strength and arguments I needed to stand my ground against my parents. Throughout my life, if anything good happened to me I was always expected to "thank God", yet when things went wrong, it was my faulty or sinful behavior. I recently got accepted to an Ivy League Medical School in the United States and for the first time in my life I was able to say "I achieved this, by myself. I am here because I worked hard and not because of a whim of a divine being." I have never felt this good before. Therefore, I think that you, who served as the spark that lit this fire in me, deserve more than the few dollars (or British pounds in your case) you will get in royalties from the book I bought. I hence want to give you the most sincere, deep rooted "thank you" I possibly can.