Hi - my DD has severe S&L difficluties, as a result I've just started a SALT run communication course based on the 'Hanen' group at the hospital
I was sceptical at first, as DD is only 14 months, but after only a few weeks we're starting to see some really encouraging results. DD is starting to initiate far more interactions with us and gets really excited when she can see we can understand what she is trying to communicate.
Hope the link below helps other people & if your local SALT is running a similar course I'd highly recommend it!
see here for more details.