The letter J in braille

How to recognise it

Dots 2, 4 and 5 close the first decade. j is h mirrored, and it is also the cell that becomes the digit 0 after a number sign — the only digit that breaks the a=1 pattern.

The family this letter belongs to

Braille is built from ten base shapes, and J is part of the family that starts with j. Add dot 3 to that shape and you get the second letter; add dots 3 and 6 and you get the third. This family is worth knowing for what the third step produces: not a letter at all, but the “with” contraction. The braille alphabet chart shows every family in one place.

The alphabet runs out before this family does. There are only 26 letters, and the shapes in this part of the cell space went to the words English uses most instead — which is why j plus dots 3 and 6 gives you a whole word rather than a letter. The contraction reference shows the other cells that were assigned this way.

Move it down a row and it becomes punctuation

Take the shape of J and slide every dot down one position — dot 1 becomes dot 2, dot 4 becomes dot 5, and so on. The result is closing double quote.

This is how the punctuation marks were built, which makes them much less work to learn than they look: if you know the first ten letters you already know the shapes, and only have to remember they sit lower in the cell. The full punctuation table follows the same pattern.

J is also the digit 0

The first ten letters double as the digits. Put a number sign — dots 3-4-5-6 — in front, and every letter that follows reads as a number until a space or a letter sign ends the run. So J on its own is the letter, but after a number sign it is 0.

This is the single commonest source of confusion for people reading braille numbers — a run of digits takes one number sign at the start, not one per digit. How braille numbers work covers the whole rule.

Where J turns up in Grade 2

Standing on its own with spaces either side, J is not a letter at all — it is the whole word “just”. Inside a longer word it goes back to being an ordinary j. That is the rule beginners trip on most: just is a single cell, but the j in a word like “jar” is just a letter.

Writing a capital J

Braille has no separate capital letters. A capital is the same cell with a marker in front of it: dot 6, sitting alone in its own cell. So capital J is two cells, not one.

Write that marker twice and it capitalises the entire word that follows, which is how braille handles something written in block capitals. A word in full capitals therefore costs two extra cells, however long it is.

Easily confused with

These letters differ from J by a single dot, which is where reading errors actually happen. Drill them against each other rather than in alphabetical order.

Practice words

Each word below starts with J, written in Grade 1 so every letter has its own cell.