Here's a great website that categorises texts for a variety of ages. It's easy to navigate and even has a page for parents, largely aimed at advice for you and that sort of thing. The Sue Palmer book 'Toxic Childhood' is especially good, as is the Oliver James book, though I wouldn't take it all as gospel if I were you, especially Oliver James.
http://www.lovereading4kids.co.uk/genre/g12/2012-Great-Reads.html
All the best
Mr Stirrup
http://www.lovereading4kids.co.uk/genre/g12/2012-Great-Reads.html
All the best
Mr Stirrup