..which professional/group told you about them? NAS? Paed? HV? Teacher? SALT?
I have said before on here how amazed I am at the level of knowledge that some parents have, especially those with ASD kids. Social stories, sensory disorders, ABA etc. I have never even heard of any of this before finding MN (apart from ABA which I know next to nothing about)
I also feel miffed: DS is 13 with SLD and challenging behaviour and - debatable - ASD and I have never been educated about any of these theories or approaches or been pointed in the direction of appropriate literature. It would be useful to know who I should go to for information.