The first step in creating a dyslexia-friendly typeface was to research what makes it difficult for dyslexic people to read. In addition to my own studies, I also referred to the principles of Christian Boer's 2008 typeface "Dyslexie," which was the first dyslexia-friendly typeface.
My research led me to focus on 5 things to include in a typeface that would help make it easier to read.
1. Unique Forms: Counters the "Mirroring Effect" that dyslexia causes.
2. Weighted Letterform Bottoms: Keeps eye grounded to the line, rather than roam the paragraph.
3. Underlying Diagonals: Keep nudge the eye in a left to right direction so the reader is less likely to go backward.
4. Alternating Serifs: Helps make characters more unique as well as subtly acts as a leading and ending point of the letterform.
5. End Punctuation With Extra Space: Giving ending punctuation a little extra space helps signal the end of a sentence and group words in a natural way.