The letters of the Ogham are usually written from bottom to top, left to right. Here I have here drawn five staves, the first four staves being those of the most commonly used letters.
The fifth stave is of the last 5 Ogham letters. These are not as old as the first 20. Some (myself included) who use the Ogham never use these final five, while others find them the richest of all. If you'd like to contribute some words about the final five, please get in touch.