We are going through the processing of fostering, I found a book in the library about a womans experience with a foster child.
Its called damaged, I cannot remember the authors name but it had me crying. The little girl was 7 and had been sexually abused by parents and their friends, though no one seemed to want to help this girl.
She was in 5 foster homes in 4 months, before she ended up with the author, she took time and patience and found out about the abuse. It was also found the girl had sustained brain damage which lead to her behaviour.
Though my favourite book is 'Dont Tell Mummy' by Toni Maguire, based near me in Northern Ireland