Visit this Pinterest page to see some suggestions of books that may help a child to understand divorce.
Shelfari
Visit Siobhan's Shelfari bookshelf to see all the books she has tagged for Personal, Social & Health Education (PSHE). Issues dealt with in these books include divorce, anxiety, bullying, death and moving home.
Goodreads
Visit this Goodreads page to see a list of picture books which deal with death.