A hand-written letter is more personal and warmer than any message communicated by means of high-tech communication channels. Writing a letter calls for some careful preparation: one must find suitable paper, a pen or some other instrument, an envelope, and a beautiful stamp. Then you need to take some time, free of any regular toil and trouble, to sit down and think about what you should write and about the ideas or events you want to share with the addressee of the letter.