I just wanted to let you know that my order has just arrived. Brilliant! Your service is really outstanding, I'll be sure to let others know. Thank you very much! It's been a pleasure doing business with you.
Many thanks for your prompt reply informing me that the book is now set aside for the library. It's great that you are willing and able to send an invoice with the book -- it makes life a little easier when you work for a very large institution! Thanks again.