My husband is dyslexic so have been expecting one of my DC's to maybe be too and looking out for signs. DS2 is 4 and really isn't that interested in writing his name or letters at all, really needs to be bribed to do it at all. Was noticing tonight that if you show him words and ask him to spell them out he always reads them backwards, unless you specifically say 'no, what's the FIRST letter' and then he will do it. He can't sound out at all and just guesses words, but as he's still little and not that interested I haven't bothered pushing him into doing anything anyway.