Links to dyslexia and related sites.
An easier to read font free for personal use.
Foxit Reader (for .pdf files)
Font and background colours can be easily changed via the preferences menu and there is a text reading option.
(nb May not apply to some .pdf flavours.)
Screen Tinter LITE -
A font and background colour changer for Windows.
(nb Has now be been superseded by ReadEZ Virtual Overlay - which, unlike Screen Tinter LITE is not free.
However, the original free version can still be found via a web search.)