Kirsty Gunn: How letters can say so much more than any email

I received a lovely letter this week. It was from Mary Davidson in Edinburgh and, though it was a standard letter, sent to a number of us, it was scrawled all over with all kinds of interesting hand-written additions to the basic printed message, telling me about a package that I’d sent her and asking me if I knew the work of Leigh Hunt and his essay “the World of Books”, offering me, in a pen-to-paper way, the gift of communication that I shall certainly accept and extend.