【明報專訊】The ancient profession of letter-writing embodies some intimate qualities. Sealed away from public eyes, a letter's content is exclusive, unlike its counterpart on postcards that invite the scrutiny of the curious postman. Letter is also the least intrusive form of communication. The humble envelope shields the crafted text away for as long as its receiver wishes. For the writer, a letter's length allows artful tailoring. Every edit leaves an imprint on the same paper, documenting not only the end-message, but also the process of thoughts. Finally, hand-written characters beat all the fonts in the latest Mac OS. Letters are a rare privilege that few of us still have the privilege to receive.