Dyslexia makes letters float, rotate, and flip on a page. It turns M's into W's, q's into p's, and so on. Changing the font-face might be able to help keep the letters in place on the page.
The debate between which is better, eBooks or page turners, has been going on for a few years. The paper books smell better, the aesthetic growing as the pages turn yellow and the ink smudges from where the stories made the reader cry.