| Letters and Letter-writing | Charity Dye |
| Success in Letter-writing | Sherwin Cody |
| How to do Business by Letter | " " |
| Charm and Courtesy in Letter-writing | Frances B. Callaway |
| Studies for Letters | " " |
| The Gentlest Art | E.V. Lucas |
| The Second Post | " " |
| The Friendly Craft | F.D. Hanscom |
| Life and Letters of Miss Alcott | E.D. Cheney (Ed.) |
| Vailima Letters | R.L. Stevenson |
| Letters of William Vaughn Moody | Daniel Mason (Ed.) |
| Letters from Colonial Children | Eva March Tappan |
| Woman as Letter-writers | A.M. Ingpen. |
| The Etiquette of Correspondence | Helen E. Gavit |