I heard of an online friend who needs some encouragement, so I'm sending her one of the books I had on my shelf: Heaven: Glimpses of Glory by Ellyn Sanna.
I decided to quickly read the book before sending it. It's one of those small gift books, I had received it through bookcrossing. I found it quite encouraging to be reminded of what heaven is like. The books would be great for any Christian who faces serious issues such as a potentially terminal illness.