A letter/e-mail: Thank you note Dear Helen, I'm terribly sorry for not writing to you sooner, but I'm always very busy during this period. I thank you for your Birthday gift, you read my mind, it was exactly the book I wanted. I didn't have any party for my Birthday because I worked till late evening, and I was really tired. I hope to come next month, I really want to see you. Lots of love. Your friend Riccardo.