There are three methods of braille transcription—braillewriter, computer using a special braille program, and slate and stylus. The braillewriter and the computer work in much the same way in that they use six keys corresponding to the braille cell as shown above.
When a braille slate is used, the embossing appears on the underside of the paper. Therefore, the writing is done from right to left, so that when the page is turned over it can be read from left to right. For this reason dots 1, 2, and 3 are brailled at the right-hand side of the braille cell on the slate; dots 4, 5, and 6 at the left-hand side, as shown in the alphabetical index of braille signs in Appendix B.