Calligrapher Shinah Chang designs her own greeting cards. The secret to her amazing letters: an oblique pen. The odd-looking pen, which writes on an angle, turns handwriting into a work of art.

Even legendary author Charlotte Brontë felt that all-consuming anguish from unrequited love, which she expressed in a number of candid letters to the man of her affections. It was in 1843 at 28 ...