appeal – please let me know of systems change literature relevant to children!

I’m leading a (very small) piece of work for a children’s charity focused on local systems change.
While I know quite a lot of material about this subject, I’d be enormously grateful if people could respond to this post with anything they consider relevant – and particularly any summaries?
This is social systems relating to children’s early years literacy, child protection, wellbeing in general. I know it is quite a wide field…