Im so sorry to hear about your dad having lymphoma. If you dont mind my asking--how did he get his diagnosis? Im going through a bunch of tests right now, so I was just curious.
I think what you are already doing by sending him books and flowers is great! Encouraging phone calls are always nice. Is he a computer person? Emails and email cards are nice too. Why does he have a poor prognosis?
I hope and pray that your dad will get through this with flying colors! It sounds like he has a good attitude as well--that is very important
Good luck, and i'll be praying for your dad