The following resources are freely available on the internet:
Melanie Nelson’s Massey University paper – an analysis of ‘Agility with Sound’.
Gail Gillon’s website (Canterbury University)
The American Federation of Teachers website.
Louisa Moats: Teaching Reading is Rocket Science (pdf)
Louisa Moats: How Spelling Supports Reading (pdf)
Jane Fell Greene. Another Chance – Help for Older Students with Limited Literacy (pdf)
Also search ‘dyslexia’ and other relevant articles will come up.