If you're looking for help about with dyslexia we think that you'll find all the basics at the [http://www.bdadyslexia.org.uk/ British Dyslexia Association].
We've been consistently impressed by the books we've seen from [http://www.barringtonstoke.co.uk/ Barrington Stoke] with their combination of the perfect paper, reader-friendly font, good line spacing and stories which that are appropriate for the age of the reader, whilst still taking account of the likely reading age.
[http://www.eprint.co.uk/ Educational Printing Services] also follow all the guidelines for dyslexia-friendly books.